intern8tion9l Posted June 13, 2008 Report Posted June 13, 2008 i just don't know wtf is wrong, but it's been getting more and more on my nerves.....when i first start the car, everything is fine. as soon as the cooling fan kicks on, or i touch the gas, it idles up to like 2000-2500rpm. it will generally stay like this until the car sits for a bit. although sometimes when i come to a complete stop it kicks back down. it also revs up to like 3000 in between shifts. it sounds like ass. i meaen the car will practically drive itself cause it wants to keep the rpms up so high. i've checked vaccuum lines and replaced the IAC.....no change. any clues? a chip problem perhaps? damn this thing Quote
mediabandit Posted June 13, 2008 Report Posted June 13, 2008 i just had this happen to me recently, i replaced the heating tube from the firewall to the block and i accidently pulled the vaccuum line that runs underneath the back of the plenum. it reacted the exact same way as your is. i am sure you have already checked that but i figured i would try and help out, just in case you may have overlooked that one for some reason. good luck Quote
jdcutty Posted June 13, 2008 Report Posted June 13, 2008 could be an intake gasket as well, or the pcv valve. Quote
19Cutlass94 Posted June 13, 2008 Report Posted June 13, 2008 bring it on up, and well take a look at it. Quote
intern8tion9l Posted June 13, 2008 Author Report Posted June 13, 2008 i just had this happen to me recently, i replaced the heating tube from the firewall to the block and i accidently pulled the vaccuum line that runs underneath the back of the plenum. it reacted the exact same way as your is. i am sure you have already checked that but i figured i would try and help out, just in case you may have overlooked that one for some reason. good luck i'm willing to check or recheck anything. by under do you mean i have to remove the plenum, or is it visible between the engine and the firewall? Quote
mediabandit Posted June 14, 2008 Report Posted June 14, 2008 it is tucked up under the rear of the plenum, you do not have remove it. it is just to the left of where your pcv line connects. i will get a pic later when i get a minute if u don't find it. it is hard to get it. Â Quote
intern8tion9l Posted June 14, 2008 Author Report Posted June 14, 2008 i'm sure it makes for a tough shot. i feel like such a douche sittin at a light and stuff with the engine just racing Quote
ns87 Posted June 14, 2008 Report Posted June 14, 2008 Also maybe the Coolant temperature sensor? That is my last sensor I need to replace and I have a crazy high idle sometimes. Once I start driving it goes back to normal though. Â Definitely come up so we can take a ride in the Catbus! Quote
AL Posted June 15, 2008 Report Posted June 15, 2008 my car is doing the same thing... when i put it in drive it jerks forward and then continues to go up to 35 mph without touching the gas pedal... what motor do you have? Quote
Brian P Posted June 15, 2008 Report Posted June 15, 2008 do you have a spare pcm and stock chip you could try? Quote
19Cutlass94 Posted June 15, 2008 Report Posted June 15, 2008 Like I said, drive the car up here. I have a few things I wanna look at on that car/engine, after the problems Ive had with mine. They seem somewhat similar. Quote
meltboy1 Posted June 16, 2008 Report Posted June 16, 2008 hey maybe we could look at mine too and figure out why it idles at like 2k plus for about 10-15 seconds after I start it and see why it doesn't start in the morning the first time sometimes... I don't think I am too far... Quote
meltboy1 Posted June 16, 2008 Report Posted June 16, 2008 the 89 does the same thing... I can't drive 2 cars at once... lool Quote
intern8tion9l Posted June 16, 2008 Author Report Posted June 16, 2008 jay i'm gunna try to get up there maybe next weekend i think......but i'm torn cause i want to bring my bike up too.... Quote
19Cutlass94 Posted June 17, 2008 Report Posted June 17, 2008 This weekend coming up I believe I have to work... so if you wanna bring the car up the weekend after that would cool. Quote
intern8tion9l Posted June 17, 2008 Author Report Posted June 17, 2008 thats the one i'm talkin about...the weekend of the 27th Quote
19Cutlass94 Posted June 17, 2008 Report Posted June 17, 2008 I be off that weekend, so you can bring the car up. Quote
intern8tion9l Posted June 25, 2008 Author Report Posted June 25, 2008 UPDATE: changed the coolant temp sensor, no change. changed the TPS, and it was worse....idling at about 3500rpm. i have found that if i unplug the TPS, the car idles and revs perfectly......what the hell is going on here?? Quote
intern8tion9l Posted August 28, 2008 Author Report Posted August 28, 2008 changed the iac....still no better. this has to be an electrical problem somewhere......does the chip programming have anything to do with cooling fans/idle? Quote
Timm Posted August 28, 2008 Report Posted August 28, 2008 One of my vacumme lines was disconected. The rpm's floated between 1,700 to 500. if I even TOUCHED the accelerator, the RPM's would go up to about 3,000 for about 1.25858767499039 seconds. Then slowly climb back down to do their crazy thing again. Also there was a hissing noise in the engine compartment. Quote
intern8tion9l Posted August 29, 2008 Author Report Posted August 29, 2008 i've checked and rechecked the lines and gaskets. haven't found a leak Quote
ns87 Posted August 29, 2008 Report Posted August 29, 2008 I'm in the same boat as you still. Haven't gotten over 2000rpm idle yet though. I'm guessing LIM slowly leaking or something, b/c I've occasionally lost a large amount of coolant in a short time. No real leaks either Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.