Light Duty vs Heavy Duty parts?
From : z88z
Q: are ld and hd trucks based on model designations like dakota and 1500 are ld 2500 and 3500 are hd with a few exceptions yes. for instance back in the mid-90s there was a 2500ld available. more importantly were gas 5.9s available in both ld and hd trucks 5.9s were available in both dakotas some variants - i believe only the dak qc and r/t could be had with the 360 and ram 1500s but only with automatics. they were available in 2500s and 3500s with either automatic or manual transmissions. were both available in either 2wd or 4wd yes were 5 speeds available in both designations and were there gear ratios between the two different yes for all platforms with the above-stated exception that you could only get daks and 1500s with 5spds coupled to either the 5.2l or 3.9l engines. there were slight differences in gear ratios between the nv3500 in the dak and 1500 and the nv4500 available in the 2500/3500. obviously input torque ratings were different as well. is the engine mapping different from ld to hd and if so which pcm is more suitable for performance applications in some years only slightly so. i seem to remember the 360 in the 2500/3500 platforms being rated at maybe 5lb.ft. more torque - or something pretty insignificant. that torque difference could easily have come from different exhaust configurations too. .
Replies:
From : steve lusardi
anyone tried one looks like a good deal on the ats set up for a 47re john .
From : roy
yep. much more entertaining than watching an oval race in my opinion. any of you folks watch it .
From : roy
craig c. wrote different builders use different units. for example in my last house my builder coventry used rheem 10 seer units. the house next door was built by bradford. it had trane 13 seer units. as of jan. 1st 2006 a/c units manufactured after that date must be seer 12 or above. i had my unit replaced last spring and was able to find a seer 10 unit to replace the existing 13 year old seer 10 unit. had i gone with the newer higher seer rated units i would have also had to replace the exchanger up in the attic i have a heat pump. that would have been a major expense including cutting a hole in the side of the house to remove and replace the exchanger along with the much higher expense of the higher rated unit. paybacks on lower bills would have been too long for me. .
From : z88z
long and the short of it is this. got this months elec bill and it was outrageous for a family that is very energy wise. talk to neighbors with homes by the same builder bills ran from 200 - 900 bucks. all the single stories have the same make/model ac two stories has same make different model. homes by different builer on next block in same community have bills that max out at 180! trying to figure out what the hell is going on. i know there can be a lot of factors but i have to start at group and work up .
From : z88z
is there a standard for the proper sizing of an ac/hvac unit to a home meaning if you have a 1600 sq ft single story you should have if you have a 2200 sq ft two story you should have yes ashrae has standards based upon several factors. some of the factors are 1. insulation value of the building 2. max/min ambient temps 3. max humidity 4. sun load 5. household heat load 6. desired air changes per hour 7. square/cubic footage bigger aint necessarily better when it comes to hvac. mike .
From : roy
is there a standard for the proper sizing of an ac/hvac unit to a home meaning if you have a 1600 sq ft single story you should have if you have a 2200 sq ft two story you should have yes ashrae has standards based upon several factors. some of the factors are 1. insulation value of the building 2. max/min ambient temps 3. max humidity 4. sun load 5. household heat load 6. desired air changes per hour 7. square/cubic footage bigger aint necessarily better when it comes to hvac. now thats one i wont touch! vbg you left out one thing mike. the amount of hot air larry spews forth on a bad day!gbfg roy mike .
From : roy
the hyper pac was an early 1960 option that consisted of headers hotter camshaft and a 4bbl manifold. probably a few other things but the 3 mentioned were the main stuff. for some reason i thought it had multiple carbs. oh well. are you saying that you might be wrong!!! and you call yourself a buddist! listen!! you know that as one who practices buddism no matter what i say it is never wrong!!!!!!!!!!!!!!! bfg roy if at first you dont succeed youre not cut out for skydiving .
From : roy
i just bought an 89 dodge ram g250 extended van. it runs great and aside from a little rust on the door bottoms and a few other minor repairs its in excellent condition. but there is a bigger problem. on the passenger side the front section of the frame is all rusted leaving little metal left. the rust starts at the coil spring and goes up to the front bumper. because of this deteriorated frame the front torsion bar is no longer attached to anything and bangs around all the time. i fear that the coil spring will soon break away if i dont repair this. the problem is how i can weld but making something fit in there is beyond me. the frame is fine from the rear of that coil spring to the back and on the drivers side. i just need this 3 foot section. aside from finding a junk yard that has the part is there any place where i can order new frame sections i assume the body shops must have a place where they can get things like this but where does anyone know .
From : z88z
tbone wrote as mike and many others have said bigger is not always better. i currently have a seer 10 unit but not sure of size. i had my old one replaced last year. if i had gone to a seer 15 unit every a/c person i talked to said that unit would be larger. the coolant lines would be much larger larger compressor and the exchanger i have a heat pump much larger. estimated bills would be cut 25-50% but unit would cost about $5000 to install vs. the $2200 it cost to stay with a seer 10. most of that difference was because the higher seer a/c unit would require replacement of my exchanger with a much larger unit. so in my case a higher seer larger unit would be better...but much more costly. .
From : z88z
http//en.wikipedia.org/wiki/opto-isolator these things are pretty neat. if the device is properly designed you only have to replace the chip or the board with the chip on it depending on how its engineered to get the circuit to work again if it encounters something severely out of spec. ed h. wrote i note the at the end of you post but opto-isolators and odbii i dont see why it wouldnt work but i have only seen copper. im not a professional service technician which makes me curious do any vehicles us opto-isolators z88z wrote roy wrote the way around it i believe is to find a friend who does the inspections and either manually enter data or put the sniffer inanother car or truck. thanks roy. thats old school. been there done that. wont work in this case though. they plug the inspection machine rihgt into the obdii port under the dash. not only does it pick up any fault codes but it reads the vin and that has to match the vin on the registration. i think i can use the dodge 5spd pcm as long as i can put my vin into it. thanks again - john ever considered switching your pcm to extremely high voltage diagnostic operation those opto-isolators gotta give up at some point .
From : z88z
the hyper pac was an early 1960 option that consisted of headers hotter camshaft and a 4bbl manifold. probably a few other things but the 3 mentioned were the main stuff. for some reason i thought it had multiple carbs. oh well. .
From : roy
the hyper pac was an early 1960 option that consisted of headers hotter camshaft and a 4bbl manifold. probably a few other things but the 3 mentioned were the main stuff. .
From : stephen harding
z88z wrote slightly confused on this issue are ld and hd trucks based on model designations like dakota an 1500 are ld 2500 and 3500 are hd or does this have more to do wit various options available on any truck like engine/transmission/axl ratios or is it more suspension related more importantly were gas 5.9s available in both ld and hd trucks were both available in either 2wd or 4wd were 5 speeds available in both designations and were there gea ratios between the two different is the engine mapping different from ld to hd and if so which pc is more suitable for performance applications roy joanie pulled the pin last year. paul fawkes folksie and ron salty too i think jb was the longest serving female engineer in the northeas and maybe the country chris perrone passed away last year. he was the one that dressed lik the engineers of days gone by im sure id know you if i saw you. i rode the acelas for bombardie out of bos from 2001 to 2003. then amtrak hsr mechanical 2003 to 200 my coworkers were randy gould and martin flaherty both returned t mbcr since then went into the engineer training program in marc 2005 and got set up nov 1 2006 the t actually wants amtrak back. not too happy with mbcr we finally got a contract proposal after 7 years without one. itl get voted down though. no back pay etc. the amtrak police signe theirs. they took a beating .
From : roy
and again from a third source confirms this whining a whining noise can be caused by shorted diodes or stator or by a dry rotor bearing. a quick way to test for the cause of a whining sound is to disconnect the wiring to the generator. then start and run the engine. if the noise is not there the cause of the noise is a magnetic whine due to shorted diodes or stator windings. use a scope to verify the condition of the diodes and stator. if the noise remains the cause is mechanical and probably due to worn bearings. dont have the url handy its from the autozone site 4ax.com on 5 aug 2007 164302 +0200 wonderbreath wonderbreath@madeup.org wrote he explained that when a diode fails the unbalance in the alternator magnetic circuit causes the whine. about 6 months later the alternator had to be replaced and of course the noise was gone. this is true usually in the form of a loud whine that varies with rpm. alternators are 3 phase delta wound and have 6 output diodes for full wave rectification of each phase. when you loose one output will drop some. if you have access to a scope you can find/verify a bad output diodes in a flash ----------------- thesnoman.com .
From : tbone
z88z wrote slightly confused on this issue are ld and hd trucks based on model designations like dakota an 1500 are ld 2500 and 3500 are hd or does this have more to do wit various options available on any truck like engine/transmission/axl ratios or is it more suspension related more importantly were gas 5.9s available in both ld and hd trucks were both available in either 2wd or 4wd were 5 speeds available in both designations and were there gea ratios between the two different is the engine mapping different from ld to hd and if so which pc is more suitable for performance applications steve l./tbone/ro ya i guess i misread something there. i knew the 4500 was the onl manual but i thought someone was saying there was a 3500 available. my mistake looks like the 3500 is the one to use. but did dodge ever use th nv3550 behind 3.9 or 5.2s in 2000 o 2001 or were they still using the nv3500s anyone know about the swap compatibility betwee jeep/dodge/auto/manual transfer cases i think ill start anothe post on that. hopefully in a few minutes roy - i drive the trains. currently in the yard. thats bi a not mbcr .
From : steve lusardi
the issue is that the nv3500 is not rated for the torque output of the 360 which is why you could not get the 360 with a 5 speed in the ram 1500 series. -- if at first you dont succeed youre not cut out for skydiving i dont know about nv3500 with a 5.9 offering but it was offered in the 5.2. since the bell housing fits both there is no issue. use the 5.2 housing. steve steve lusardi wrote toms data is correct but what he did not say is the ram 1500 manual computer works fine with the 5.9. you do have to use the 5.9 injectors though and the injector electrical connectors are different so you have to modify the 5.2 wiring harness accordingly. also the nv3500 is plenty strong enough for the 5.9 in a 1500 ram so itll be a piece of cake in the dak. please also remember that the 5.2 is internally balanced and the 5.9 is externally balanced so you must use the 5.9 manual flywheel and pressure plate from the 2500/3500 along with the clutch disc from the 5.2 nv3500 pilot shaft spline. depending on the year of the pcm and harness you may have either 1 or 2 oxygen sensors and 1 or 2 water temp sensors. you will be amazed just how fast this setup is right out of the garage door even with the dual throat throttle body iron manifolds and single exhaust. on another of your points the gear spacing of the nv3500 is perfect for your application. you should run a 30 inch tire and a 3.55 axle. that will give you 85 mph at 2500 in 5th. with just a little care you will see 17+ mpg. steve the 5.9 came with an nv3500 application was that 4wd or 2wd i thought they never had anything except the nv4500 behind the 5.9. great info from you once again but i think you are confusing part of it with the person that posted about a 5.9 into a 5.2 dak. my nv swap is to replace the 46re in my 98 5.9 zj jeep. the nuts and bolts of this swap seem pretty straightforward. i knew about the 5.9 balance and using the right flywheel but i did not know about using the 5.9 pressure plate with a 5.2 clutch disc. i wonder if those parts can be bought separately i plan on using the computer from a 98 5.9 manual ram. i know the pcm and harness are physically direct swaps with the jeep parts but i might need a wire or two swapped/added/deleted at the connector. the deal in ma is the emissions inspection machine enters the vehicle vin right out of the pcm and it has to match the actual vehicle vin so i need my vin in it. still having a heck of a time finding out if it is possible to burn my vin into a used pcm out of another truck. i hear you cant flash a vin if the pcm already has one but i have also heard there are ways it can be done. still researching that part of it. i can get it flashed into a new or remanufactured pcm for the same application but id like to keep this swap to used parts if possible. ill be posting in the next day or so about the jeep/dodge/46re/nv3500 transfer case swap compatibility. maybe youll be able to help on that too. thanks again folks - john. .
From : big al
suddenly without warning chris thompson exclaimed 8/5/2007 503 am in responce to jmc s post. i thought everyone should know suddenly without warning nosey exclaimed 8/4/2007 901 pm twigs take manifold gasket thatd mean nosey wins right. you guys agree has it been fixed yet did i really win not yet. gotta wait for the parts to come in. jmc what parts did they/you order manifold gaskets p/n 53034029ad and p/n 53034030ac. jmc .
From : steve lusardi
toms data is correct but what he did not say is the ram 1500 manual computer works fine with the 5.9. you do have to use the 5.9 injectors though and the injector electrical connectors are different so you have to modify the 5.2 wiring harness accordingly. also the nv3500 is plenty strong enough for the 5.9 in a 1500 ram so itll be a piece of cake in the dak. please also remember that the 5.2 is internally balanced and the 5.9 is externally balanced so you must use the 5.9 manual flywheel and pressure plate from the 2500/3500 along with the clutch disc from the 5.2 nv3500 pilot shaft spline. depending on the year of the pcm and harness you may have either 1 or 2 oxygen sensors and 1 or 2 water temp sensors. you will be amazed just how fast this setup is right out of the garage door even with the dual throat throttle body iron manifolds and single exhaust. on another of your points the gear spacing of the nv3500 is perfect for your application. you should run a 30 inch tire and a 3.55 axle. that will give you 85 mph at 2500 in 5th. with just a little care you will see 17+ mpg. steve z88z wrote slightly confused on this issue. are ld and hd trucks based on model designations like dakota and 1500 are ld 2500 and 3500 are hd or does this have more to do with various options available on any truck like engine/transmission/axle ratios or is it more suspension related more importantly were gas 5.9s available in both ld and hd trucks were both available in either 2wd or 4wd were 5 speeds available in both designations and were there gear ratios between the two different is the engine mapping different from ld to hd and if so which pcm is more suitable for performance applications thanks tom i am planning a 5speed swap into my 98 5.9 zj jeep. im trying to figure which is the closest ratio of the nv tannies and which 5.9 pcm has the closest mapping to my zj so i know what trucks to look for. it would be configured for street rather than offroad so i really dont want the nv4500 and the granny 1st gear. its a shame as i gather they are close to bulletproof with the exception of some 5th gear problems. im trying to decide between the nv3500 or the nv3550. neither one is a great trans in terms of durability but my choices are limited. the nv3500 will be a direct fit but it would seem odd to have a manual trans without a removeable bellhousing. the nv3550 can be adapted with some minor relieving of an ax15 bellhousing from a 3.9 motor. did they come behind 5.2s also i believe the nv3550 was only used on the wranglers and does not have a factory 3.9 or 5.2 bellhousing but i could be wrong and i dont think the 5.9/nv4500 bellhousing will fit the nv3550. im still trying to solve the pcm swap question regarding the ability to reflash my vin into a used pcm. i hear it cant be done but others say it can. 95% sure i need my vin in the pcm so the machine doesnt reject it during the ma emissions inspections. so i figure i would be using the pcm from a 98 5.9 5spd ram. i also have a few dodge/jeep/auto/manual transfer case swap compatability questions that i will be posting in the next day or two. thanks again for the good info - john .
From : z88z
the nv3500 will be a direct fit but it would seem odd to have a manual trans without a removeable bellhousing. the nv3550 can be adapted with some minor relieving of an ax15 bellhousing from a 3.9 motor. did they come behind 5.2s also i believe the nv3550 was only used on the wranglers and does not have a factory 3.9 or 5.2 bellhousing but i could be wrong and i dont think the 5.9/nv4500 bellhousing will fit the nv3550. im still trying to solve the pcm swap question regarding the ability to reflash my vin into a used pcm. i hear it cant be done but others say it can. 95% sure i need my vin in the pcm so the machine doesnt reject it during the ma emissions inspections. so i figure i would be using the pcm from a 98 5.9 5spd ram. i also have a few dodge/jeep/auto/manual transfer case swap compatability questions that i will be posting in the next day or two. thanks again for the good info - john . 222 337842 f91o4d$g1p$1@aioe.org twigs take manifold gasket thatd mean nosey wins right. you guys agree has it been fixed yet did i really win -- ken .
From : tom lawrence
balsofsteele@gmail.com wrote ever considered switching your pcm to extremely high voltage diagnostic operation those opto-isolators gotta give up at some point umm im not familiar with that concept. an opto-isolator aka optical isolator is a bridge between 2 devices which uses light instead of voltage to transmit the state of a circuit across the bridge. they are useful in applications in which you want to ensure current wont arc across the bridge i.e. a water slide flow rate gauge connected to a 220v ac pump. is that one of those things like the relativity cadenza module gasket is bad.... or as a friend used to say the beau gear jumped the heifer shaft beekeep are senior citizens in maryland exempt from having their cars inspected or are senior cars in maryland exempt from having their citizens inspected or are senior cars exempt from the inspection sorry its friday! lol - .
From : z88z
ok while driving my 2000 caravan started doing something odd electrically... i heard a steady ticking sound coming from the steering column area in synch with the ticking the odometer and other dash lights blinked. this went on for about a minute or two then it went away. i had something similar related happen the other day when i tried to start the van but it would not even engage the starter. it would just tick. this also went away after about a minute and then i was able to start the van. anyone know what this might be i do have an after-market alarm system which has been in the vehicle for a couple of years now although it hasnt functioned normally in about a year doesnt always respond unless im almost on top of the van rarely makes a beep sound any more when engaging/disengaging. thanks. sounds like a weak battery and/or corroded battery terminals... check this first. mike .