'96 B2500 rough idle, could it be the MAP?
From : fawilson
Q: in response to fawilson s post. i thought everyone should know hello i have a 96 b2500 with 5.9. about 2 years ago we had a new/rebuilt jasper engine put in it because it had a rod knocking. not too long after that we noticed the idle was a little rough. over the year or two it has gotten to the point of being real rough. idles smooth while cold as it warms it gets to a point where it increases 300 rpms or more then drops off. the manual says check vacuum first. i did this today and found a busted line from the throttle body to some kind of solenoid. i replaced that line the pcv and air filter the condition is still there. after some research and study i think the map or intake air sensors could cause my problem. before outlaying that kind of money to see if a replacement would work is there anything else i should be concerned with thank you fred cant recall and i dont have a 96 service manual here. but does it have an egr might wanna check it if it does. -- chris .
Replies:
From : dennyfawilson
greg o wrote tom lawrence wrote you have it backwards heat pumps do go by seer or seasonal energy eficency rating and it is seasonal because heat pump can heat and cool and plain central a/cs go by eer. you better call trane and tell them theyre wrong as theyre rating their plain central a/cs by seer http//www.trane.com/residential/products/airconditioners/xl19i.aspx seems seer applies to both. my heat pump has a seer rating. i did some more digging too. i have older ruud literature sitting right on my desk showing ac and heat pump unit rating acs in seer and heat pumps in eer. then i go on the net and i see seer and eer ratings used on both ac and heat pump. seems to me someone changed the rules sometime in the last couple years! greg http//www.eia.doe.gov/glossary/glossarys.htm the average heat pump or central air conditioner sold in 1986 had an seer of about 9 puts usage of the term *seer* with heat pumps 21 years ago. ask the it tech what needs to be flashed when you install a hard drive. -- you really dont know shit than do you cock breath flash cock breath when you recover from a hdd crash or failure and you are starting from fresh some thing will need to be flashed for the system to work properly again. but fuck im only an it tech what the hell do i know. .
From : fawilson
sorry for my bad english - i speak french... hello my father in law have a dodge dakota 1998 5.2 l. his truck just stop and the error code no bus appear in the odometer. her have to wait minutes or hours before the truck start again - but it start... then stop after minutes or hours. he have change the coil coy then the pickup coil gaz pump and the issue persist. next step will be to change the crank sensor. do you have any suggestion or more questions to ask because im a neweber in this matter... thanks for him ! morpheus .
From : john kunkel
so here is what ive done so far. i took out the intake air valve and found that it was all crusty and carboned up also it had a rattle to it. i got a new one and put it on there and it seem to help for a little bit however the idle is much lower and much more calm. so i think i am getting closer even though it still is pulsating. it could be my imagination but it seem to have a little better takeoff power too. my wife is out now getting a map sensor and an intake air temperature sensor. i will put both of those in and see. it will be my luck that it is the throttle position sensor. any comments thanks fred on aug 25 939 pm fawilson wilson.freder...@gmail.com wrote hello i have a 96 b2500 with 5.9. about 2 years ago we had a new/rebuilt jasper engine put in it because it had a rod knocking. not too long after that we noticed the idle was a little rough. over the year or two it has gotten to the point of being real rough. idles smooth while cold as it warms it gets to a point where it increases 300 rpms or more then drops off. the manual says check vacuum first. i did this today and found a busted line from the throttle body to some kind of solenoid. i replaced that line the pcv and air filter the condition is still there. after some research and study i think the map or intake air sensors could cause my problem. before outlaying that kind of money to see if a replacement would work is there anything else i should be concerned with thank you fred .
From : fawilson
they both appear to be wrong. eer is simply energy efficiency ratio and is calculated with a specific internal and external temp and is commonly used for portable units such as window ac units where they are not a permanent part of the structure that they are cooling. http//www.air-conditioner-home.com/eer.aspx seer is the seasonal energy efficiency ratio and is used for permanent units such as central ac units and heat pumps which are basically central ac units that can run backwards. the seer value is similar to eer but is calculated over a range of internal and external temps as these units are part of the structure they are set up to cool. http//en.wikipedia.org/wiki/seasonalenergyefficiencyratio and this took all of about 10 seconds to find. -- if at first you dont succeed youre not cut out for skydiving greg o wrote you have it backwards heat pumps do go by seer or seasonal energy eficency rating and it is seasonal because heat pump can heat and cool and plain central a/cs go by eer. ----------------- thesnoman.com what ever! google it and find out for yourself! greg my heat pump clearly has a seer rating so one of you is wrong! .
From : fawilson
on fri 24 aug 2007 190929 gmt fmb fmbb@sbcglobal.net wrote the wife got back from a shopping trip yesterday with a very wet passenger side carpet.. the trip was several hours with the ac on... in my last couple of trucks it was always a little tube that had come off a nipple probably from a passengers foot... i cant find anything like that here or any one spot that the water seems to have come from any suggestions yeah dont let her go shopping! oh hi nan look for where the tube drains on the engine side of the firewall and see what is plugging it up. mexican dust/sand burrito a missing piece of da machine fmb north mexico ok.. i can do that...*g* thanks! when ya coming down not this year mac. i cant say for next year yet either unless i leave my first wife at home. she doesnt have an interest yet to travel to south mexico. im workin on it though... did you find what was pluggin your drain hole fmb north mexico .
From : fawilson
on aug 25 630 pm snoman ad...@snoman.com wrote on sat 25 aug 2007 163946 -0700 azwiley1 wiley...@yahoo.com wrote greg take a deep breath and relax. this is yet just another perfect example as to why no one listens to a damn thing snoball says and this is another example of why you are a troll because you do not know what a seer is either. ----------------- thesnoman.com really i am a troll ha!! if i am a troll wtf does that make you i dont know what a seer is please oh mister expert of all things before never tell me where you came up with that brilliant decuction when i never once mentioned it i admitted about three posts ago that i am not a hvac expert but i know many in here and out of here that are. see unlike you i do not constantly post about things i know nothing about hvac systems would be a great example of such. .
From : chris thompson
i have a 2003 caravan sport swb short wheel base and noticed the rear end sits higher than the front on level ground. one dealer said this is normal due to the springs/suspension. but i notice that some other swb caravans sit level. what going on here how can i lower the rear end thanks mike .
From : chris thompson
in response to roy s post. i thought everyone should know anybody got a chain saw so we can widen out the doorways gbmfg why you wanna come in ^ wow!! hey rabbit seems like he got ya.bfg actually the wide ride will have probably have shrunken a size or two with all the water hes in. damn! rabbits shrink when they get wet i thought that was cotton.... denny cotton tail chris .