Trans Shifting Problem.
From : e lowejr
Q: i have a 98 ram 2500 diesel 4x4 with an abs light that will come on for a day or so then go back out for a few days then back on. the dealer tells me the code 72 ecu rom check sum error basically means the brain to the abs is shot. big $$$$. am i getting fleeced or is this true any experience will be greatly appreciated. .
Replies:
From : max dodge
thanks guys for the information. i jacked both rear wheels off the ground and they turned in opposite directions. so it must be open differential. i think thanks again dennis b. .
From : john kunkel
i also have a 2000 ctd 4x4 that experieneced the same problems. i also found the solution on this group. the local dodge dealer said my tc was bad. the so-called best transmission mechic in town replaced the apps. so after i had spent about $1000.00 my problem was still there. i didnt move the ground wire i just shielded it and i purchased a noise filter from bd power and installed it. real easy one end splices into the apps power wire at the pcm and the other end goes to ground. i did both about the same time so i do not know which one fixed it but the important thing is that it is fixed. two months now!!! thank you to everyone that gave me advice. .
From : max dodge
im not missing your point john. infact ive agreed that a sick motor could cause that effect. however the op made no mention of a sick motor and claims the problem isnt always present at least not to the same degree of severity. im not sure just how bad the engine would have to be for it to affect tv operation as severely as has been described but its a fair guess its gotta be bad enough to notice more than a bad shift point. further since the op noticed it in the last week its also a fair bet its a noticable change not a gradual one such as an out of tune engine. again id check codes first and go from there. -- max join www.devilbrad.com and find out what free exchange of info is all about. there are four boxes to be used in defense of liberty soap ballot jury and ammo. please use in that order. -ed howdershelt author youre forgetting the tv cable a large throttle input at low road speed is the classic scenario for a delayed upshift. not forgetting it at all. if the tv cable were out of adjustment it would happen all the time not just select incidents as the op infers. second it wouldnt happen suddenly as the op mentions unless something broke and then the problem would be constant not selective. further if the cable broke or stretched the shifts would be too soon. as usual youre missing my point im not saying the tv cable is out of adjustment im saying there is a possibility that a sick motor would require more throttle and more throttle means more tv cable extension; the overextended tv cable would delay the upshift. .
From : john kunkel
does anyone know if the axle has to be pulled to replace rear brake cylinders on an 88 dodge one ton.... thx .
From : john kunkel
am what year is this andy wrote i know you all have an opinion on most things having been on the fringe of this group for years not one of the regulars. so i need some advice. i just bought an 03 3500 diesel. am radio comes in like crap. checked the antenna connection took the radio out its one of the stock ones that displays the station and what is playing it all looks ok but i can not listen to wabc in the ny metro area which came in fine in my durango and my wifes 300. so any suggestions or ball breaking thanks andy .
From : tbone
precisiontowing@hotmail.com wrote i need some professional help here fellas if anyone can help. i am a big ram fan with a couple of half million kilo wreckers in my fleet with no signs of slowing down. i do all of the maint. myself except injector pump work their only weakness. anyway for the last month the speedo on my 99 4x4 cummins has been quiting but at the same moment the air bag light comes on. not clear if you tried this yet but it works on my sons jeep cherokee with the same symptoms next time it happens push on the upper and lower corners opposite sides of the instrument cluster torquing it slightly. on the jeep the instrument cluster connectors wear over time and that seems to reseat it. jack .
From : snoman
is the allen bolt that holds the calipers on 7mm need correct size to do a brake job. thanks in advance. its probably a 3/8 - but it would help if you gave a hint as to what kind of vehicle youre talking about. .
From : max dodge
i know you all have an opinion on most things having been on the fringe of this group for years not one of the regulars. so i need some advice. i just bought an 03 3500 diesel. am radio comes in like crap. checked the antenna connection took the radio out its one of the stock ones that displays the station and what is playing it all looks ok but i can not listen to wabc in the ny metro area which came in fine in my durango and my wifes 300. so any suggestions or ball breaking thanks andy .
From : bob m
when a engine is out of tune it will have a higher manifold pressure lower vacum at a given speed than one that is in good tune so the shift will delay or hang whether it is a dodge chevy or ford. more false info. vacuum is a factor of rpm vs throttle position. state of tune is irrelevant unless mechanical problems are present in the valvetrain. you guys are complicating the issue if the motor is lacking power the accelerator pedal will have to be depressed further to get the expected performance; this will result in the throttle valve cable being extended farther than normal for a given road speed and this results in delayed upshifts. .
From : tbone
we have had some issues with the radio shutting down in the past but it always comes back on. then on sunday we were on our way back from cali and i jumped a bump a bump nothing seemed to happen -why would it this is an suv right then about an hour later the radio which is stock shut down then the int lights stopped working then when we took the keys out the car still dings. so we checked the fuses and the relays the int fuse was blown and when we replace it it pops instantly. the relays are fine except the int relay is making a clicking noise when you turn the headlights on. so i drove the car to the store and it ran fine just no radio or int lights the next morning when i went to go to work it wouldnt start!!! what has happened to my car suggestions i have heard is that its the voltage regulator or altenator or a plug has came unplugged. please help me!!! .
From : max dodge
bryan bryan.swadenernospam@comcast.net skrev i meddelandet mattias wrote check this out.. i have problem starting my dodge ram van b250 - 87 it started this morning and then after shutting it down i could not start it again. the symthom was like a weak battery. using start cables it did not help at all. it was like the extra power did nothing and the startmotor could not be able to turn at all. like the battery is out. im thinking of changing the startmotor what do you think // mattias mattias the starter is mounted to the front of the transmission on the drivers side near the bottom. a voltmeter even a cheap one is your friend. if fully charged the battery terminal voltage will be around 12.6 volts. its telling if the voltage is 2 volts low shorted cell... cranking will be slow at best and jumping from a good battery may not work. bad connections will drop voltage across them proportionate to the current thru them the current thru the starter can easily exceed 100a. while cranking measure across each connection -- there should be very little voltage drop... less than a volt across each connection. if you find one that measures high youve found the problem. the ground side of the battery is as important at the positive side too! oxidized connections to the battery are very common and if not too bad can be cleaned with a wire brush. wire brushes that are intended to clean copper plumbing pipe work well. if the oxidation is heavy you may need to scrape them first. bryan thanks bryan i have 115 v at the startmotor + connection and the motorblock as ground.. the cables is not the freshest and i have removed tha startmotor and charging the battery. im thinking that the battery is not being charged as it should i have had electrical problem half a year ago. also the relay for the startmotor is to be checked electrical problem sucks.. not so easy to see where it is.. // mattias .
From : Annonymous
and what exactly is the pcm basing its input on how about engine load and it determins that baced on the map tps and rpm of the engine. um no. it determines shift points based on rpm tps and input from the governor pressure sensor. remember that list i posted no here fluid temp tps speed sensor gov pressure sensor pcm gov pressure solenoid valve youll notice that the map sensor isnt on there. notice also that all of those inputs go to the pcm. so if all the inputs go to the pcm they could say that the pcm determines shift points. but they listed the inputs that the pcm uses to shift the trans and map isnt one of them. lol you really do like making a fool out of yourself dont you how do you make an out of tune engine deliver the same amount of power how about stepping on the gas a little harder and what happens when you do that answer for a given rpm that means that the throttle is opened more and the vacuum is less. so while you are correct on throttle position in relation to rpm you seem to have no concept on what is can effect it.. how well the engine is tuned has very little to do with rpm and throttle position when looking at vacuum. those two variables are what determine vacuum in the engine. not the sparkplugs or the plug wires or the cap and rotor or the coil or coil packs. none of those change vacuum. if you want to argue that tps signal is changed thats true and id agree but lets look at something.... hi all98 ram 15005.9 4x4 quad cab.90715 miles. for the past weekit has started shifting later than it used toand a couple of times wouldnt shift out of first unless i let off the gasthen it shifted with up through the gears. when this happenedi just got off the freewaypulling away from a stop sign. it hanging on longer to shift.any ideas and suggestions would be appreciated. thanks. clearly he is describing a problem that has to do with pcm control of the trans not a change in tire size or a poorly tuned motor no mention of sluggishness. furthermore the problems he describes have been attributed to the governor pressure sensor and the governor pressure transducer. thus were not looking at a tune up were looking at pulling the codes and seeing what the pcm has to say. first step would be to check the pcm for codes. since its a 98 youll need to have it scanned for these codes. second might be to change filter and fluid in the trans and put a new set of solenoids for the governor pressure sensor and transducer. interesting since thats the first thing i mention doing. correct but the state of tune would have to be drastically degraded to have a change in shift point no something that generally happens overnight. really really. what if the cap cracks or an injector hangs or fails it causes a misfire something that might be a bit more noticable than shift points. the regulator in the fuel pump goes bad poor engine operation would result but the op doesnt mention that. or a sensor fails. all of these things can happen in an instant. wow a sensor fails.... what was it that i said to check oh yeah.... first step would be to check the pcm for codes. since its a 98 youll need to have it scanned for these codes. second might be to change filter and fluid in the trans and put a new set of solenoids for the governor pressure sensor and transducer. just full of relevant info today arent you -- max join www.devilbrad.com and find out what free exchange of info is all about. there are four boxes to be used in defense of liberty soap ballot jury and ammo. please use in that order. -ed howdershelt author not really road speed and engine load and load is primarily used and it is calculated by rpm and manifold pressure as this is a measure on engine output against speed/load throttle position play a roll but only realeted to the resulting manifold pressure um no. according to the 2000 fsm inputs to the governor control come from fluid temp tps speed sensor gov pressure sensor pcm gov pressure solenoid valve notice that this list has no map sensor or tach signal. and what exactly is the pcm basing its input on how about engine load and it determins that baced on the map tps and rpm of the engine. when a engine is out of tune it will have a higher manifold pressure lower vacum at a given speed than one that is in good tune so the shift will delay or hang whether it is a dodge chevy or ford. more false info. vacuum is a factor of rpm vs throttle position. state of tune is irrelevant unless mechanical problems are present in the valvetrain. lol you really do like making a fool out of yourself dont you how do you make an out of tune engine deliver the same amount of power how about stepping on the gas a little harder and what happens when you do that answer for a given rpm that means that the throttle is opened more and the vacuum is less
From : john kunkel
max dodges max crap. engine tune has everything to do with it because a detuned engine requires more throttle for the same output. while you are correct that a detuned engine may require more throttle the pcm isnt looking for just tps or just rpm. as such the state of engine tune has little effect since the tps and rpm inputs vary independent of one another. this produces an infinite number of possible combinations that the pcm would see. that infinite number of combinations is possible with or without a well tuned engine. but i guess the escapes him. i see your claim that map had anything to do directly with trans shift points has now escaped you. i will be he believes rolling resistance has no effect either. certainly it has an effect but.... we still dont know the size of the tires. what we can bet on is that the size of the tires didnt change from when the trans shifted correctly to when it started shifting incorrectly. thus rolling resistance probably hasnt changed all that much at least not suddenly as the op seems to feel his trans did. -- max join www.devilbrad.com and find out what free exchange of info is all about. there are four boxes to be used in defense of liberty soap ballot jury and ammo. please use in that order. -ed howdershelt author on tue 15 aug 2006 025307 gmt max dodge max340@verizon.net wrote more false info. vacuum is a factor of rpm vs throttle position. state of tune is irrelevant unless mechanical problems are present in the valvetrain. max dodges max crap. engine tune has everything to do with it because a detuned engine requires more throttle for the same output. but i guess the escapes him. i will be he believes rolling resistance has no effect either. ----------------- thesnoman.com .
From : max dodge
of course this would have to happen during a stampede of elephants on the 4th of july between the hours of 345 and 415 during a hail storm with one baby zebra.... but it could happen hey....i saw that happen!!!.. thats the reason i bought that big smith...just in case it ever happened again.. give the smith to your daughter we know she is the better shot. she may be with some but not that one. tis a bit much for her arm. ill leave the one liners about elephants alone for now. just cause you cant think of any.... you know better! how was the trip fantastic! everything went as smooth as silk. roy denny .
From : snoman
on 14 aug 2006 065155 -0700 nosey thundersnake51@gmail.com wrote coal how much cleaner does coal burn than oil id be curious to see an emissions comparison as used to fuel power generation facilities. coal require more scrubbers to be clean but they both give off the same amount of co2 and maybe when oil was 20/barrel it was cheaper to use oil but given oils volitilty and limited supply and price differentail it would still be cheaper than oil even if you spent a lot on scrubbers. the problem is the fer powerfull oil lobby that controls dc more than you know and they do not want to loose that control and let coal step in and current admin is not going to let it happen either b3ecause big oil is a big financer of current controlling party and they do not want to loose their backing. the supply of oil is not limited. according to data it should be at $29 a barrel looking at historical prices to supply history. ----------------- thesnoman.com -- posted via a free usenet account from http//www.tera.com .
From : max dodge
i dont know about 2005 but in earlier years the auto tranny was not much good and at least in the denver area manuals are easy to find. i think they have since gone to a better auto though. no matter i dont like autos anyway. mine is a 2001 and has the camper sway package and i added air bags. it barely notices that my 2500 lb plus camper is on it. awsome truck! charles ed h. wrote i found a used 2005 dodge ram 2500 4x4 with ctd 3.73 gears i think thats what they were certainly not the 4.10 and 4 speed automatic transmission. i will typically carry 800-1300 lbs and would like any advice or experience from others. would i be better off finding one with 4.10 gears how reliable is the transmission i would rather have manual but gotta go with what i can find used. the dealer ran the vin at the damilier-chryler dealer site but couldnt didnt see that it had limited slip rear end. did they come standard or is this likely an open diff what else to look for or be wary of thanks. .
From : max dodge
i was having problems with the water temp gauge on a 97 2500 cummins. the reading would wander up and down the scale over a period of minutes. first replaced the sender. still wandered. some knowledgeable folks on the group here told me the wandering problem was well known - change the thermostat. did that. my gauge is steady as a rock now...... lol...... at 160 degrees f. looks like im gonna replace the dash gauge. - any gotchas to keep a watch for justin .
From : john kunkel
on thu 17 aug 2006 132538 -0700 john kunkel nobody@nowhere.net wrote it falls in the same category as topping off the blinker fluid and replacing the muffler bearings. oh yes muffler bearings i have not heard that one for many years. ----------------- thesnoman.com .
From : larry crites
could be lots of things starter ign switch start relay have you applied 12v direct to starter to see if the starter works .
From : max dodge
thanks everyone for your input. i think this is one of the best groups on the net. its also on the sticker in the glove box. which should be the same list as the one gotten from the dodge dealer. op may want to take the vin to a dealer himself to verify options. -- max there are four boxes to be used in defense of liberty soap ballot jury and ammo. please use in that order. -ed howdershelt author its also on the sticker in the glove box. usually a tag under one of the bolts near the oil fill plug on the diff. also an equipment tag door jam/under hood will list gear ratio & maybe if it has limited slip .
From : snoman
thanks everyone for your input. i think this is one of the best groups on the net. forgot to ask ive never owned a diesel before what is the maintenance costs compared to a gas engine - i know it holds a lot more oil but how much and what grade i found a used 2005 dodge ram 2500 4x4 with ctd 3.73 gears i think thats what they were certainly not the 4.10 and 4 speed automatic transmission. i will typically carry 800-1300 lbs and would like any advice or experience from others. would i be better off finding one with 4.10 gears how reliable is the transmission i would rather have manual but gotta go with what i can find used. the dealer ran the vin at the damilier-chryler dealer site but couldnt didnt see that it had limited slip rear end. did they come standard or is this likely an open diff what else to look for or be wary of thanks. .
From : snoman
check this out.. i have problem starting my dodge ram van b250 - 87 it started this morning and then after shutting it down i could not start it again. the symthom was like a weak battery. using start cables it did not help at all. it was like the extra power did nothing and the startmotor could not be able to turn at all. like the battery is out. im thinking of changing the startmotor what do you think // mattias .