eratic idle
10-20-2001, 11:34 PM
#1
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eratic idle
Hey guyz!!!
Just curious if anybody else has this problem and if anybody knows how 2 correct it? I know that there could be lots of reasons....but any advice would be areciated. When I first start my car in the morning my rpm's jump up, and then they go way down, and then jump back up.....etc. But when my car gets warmed up, this problem is no longer noticable. Thanks in advance for any help.......Jeff
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Bad A$$ Boys Drive Bad A$$ Toys
Just curious if anybody else has this problem and if anybody knows how 2 correct it? I know that there could be lots of reasons....but any advice would be areciated. When I first start my car in the morning my rpm's jump up, and then they go way down, and then jump back up.....etc. But when my car gets warmed up, this problem is no longer noticable. Thanks in advance for any help.......Jeff
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10-21-2001, 03:07 AM
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Car: 1992 RS
Engine: 3.1L V6
Transmission: T5
I think that's normal. My car does it and I think it only does it to warm the car up a little quicker. Correct me if I'm wrong anyone.
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1992 Polo Green RS 3.1L K&N conical and working on the ram air....
"Yeah, it's a V6 SO WHAT!?"
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1992 Polo Green RS 3.1L K&N conical and working on the ram air....
"Yeah, it's a V6 SO WHAT!?"
10-21-2001, 12:26 PM
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I dont have my tached hooked up just yet but as soon as I hook it up i can give you guys an answer.
to me i htink it would be normal, i mean every cra int he morning will run a little ruff until it warms up
to me i htink it would be normal, i mean every cra int he morning will run a little ruff until it warms up
10-21-2001, 06:24 PM
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Car: 1995 Z28
Engine: LT1
Transmission: Built 4L60E
Axle/Gears: 3.23's - Limited Slip
I beleive that would be fast idle. On cold mornings it will rev up a little higher to get warmed up.
Just to make sure, when it is reving high, give it a good shot of gas, and if it Idles way down after that, its just a Fast idle for the cold...
Just to make sure, when it is reving high, give it a good shot of gas, and if it Idles way down after that, its just a Fast idle for the cold...
10-22-2001, 01:22 PM
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Mine does that too when I crank it up in the mornings for school. After I go down the street to pick up my friend and leave my neighborhood it stops. It also stops if I just press the gas a few times when in Park. I thought something was wrong with my car lol.
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'91 Camaro RS 3.1L V6
4th Gen Seats, Sony Xplod CD Player, DJ Sexay's Kicks Panels on the way, Polk Audio 6½" Comp Set, 2 RF Punch 12's, RF Punch Amp 100.2, Coustic 360W Amp, Kelly Charger Front Tires. Soon to come, New Rims, New Rear Tires, Carpet, Floor Mats, Paint Job, Interior Color Change.
http://www.geocities.com/adidaspredator21/index.html
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'91 Camaro RS 3.1L V6
4th Gen Seats, Sony Xplod CD Player, DJ Sexay's Kicks Panels on the way, Polk Audio 6½" Comp Set, 2 RF Punch 12's, RF Punch Amp 100.2, Coustic 360W Amp, Kelly Charger Front Tires. Soon to come, New Rims, New Rear Tires, Carpet, Floor Mats, Paint Job, Interior Color Change.
http://www.geocities.com/adidaspredator21/index.html
10-22-2001, 01:36 PM
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Car: 1992 Camaro RS & 1992 Camaro RS
Engine: 3.1 L v6 & 305 (5.0L) v8
Transmission: 4L60 Auto
Do the basics, check your (IAC) Idle air control and do a tune up (can't hurt) like check your timing.
10-22-2001, 01:56 PM
#7
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It could just be the evap can purging. You might want to check the purge valve. One thing a lot of pepole forget is the filter on the bottom of the evap. can. Check it, if it's dirty replace. It wont hurt and will just ensure tha it is working fine.
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10-22-2001, 02:20 PM
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Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Heh, my car did the same thing this morning. It started normally, then the RPM's dropped, it almost stalled, then it rev'd back up again... did it 3 times, then stabled out. If it does it again, I'll have to check things out this weekend...
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-Tom P (Hot rodded 1986 Firebird 2.8l)
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-Tom P (Hot rodded 1986 Firebird 2.8l)
10-22-2001, 02:46 PM
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Alright guyz, thanks for the help!!!
I'm getting a new cap, rotor, plugs, plug wires, evap. can filter, fuel filter, adjusting tps and iac, new o2 sensor, and baro sensor. I figure that i haven't changed these for a while, so i'm probably due anyways. Plus I need 2 get my car smogged real soon, so I may as well get it ready for that. I'm gonna change each of these components one at a time, and start my car inbetween. I'll let ya know what the problems was (if I fix it).
lata
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Bad A$$ Boys Drive Bad A$$ Toys
I'm getting a new cap, rotor, plugs, plug wires, evap. can filter, fuel filter, adjusting tps and iac, new o2 sensor, and baro sensor. I figure that i haven't changed these for a while, so i'm probably due anyways. Plus I need 2 get my car smogged real soon, so I may as well get it ready for that. I'm gonna change each of these components one at a time, and start my car inbetween. I'll let ya know what the problems was (if I fix it).
lata
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Bad A$$ Boys Drive Bad A$$ Toys
10-22-2001, 02:58 PM
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<font face="Verdana, Arial" size="2">Originally posted by TomP:
Heh, my car did the same thing this morning. It started normally, then the RPM's dropped, it almost stalled, then it rev'd back up again... did it 3 times, then stabled out. If it does it again, I'll have to check things out this weekend...
</font>
Heh, my car did the same thing this morning. It started normally, then the RPM's dropped, it almost stalled, then it rev'd back up again... did it 3 times, then stabled out. If it does it again, I'll have to check things out this weekend...
</font>
wellt hats exactly what my car does in the cold mornings, i turn it on and it goes without a hitch but when the rpm's go down it starts sputtering, till i give it some gas then it perfectly fine.
10-22-2001, 06:22 PM
#11
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Have you check your EGR valve? If you have the 2.8L your in luck and you can accualy test it. The 3.1L use a digital EGR valve and none of the repair manuals tell you how to check them.
All though if it is trying to die before it is warmed up you might want to check the IAC,fuel filter, air filter. I have accualy had a dirty air filter keep the car from idling. The car was fight so much to get air it could barly run. If all the usale suppects check out ok try droping some fuel injector cleaner in the tank.
All though if it is trying to die before it is warmed up you might want to check the IAC,fuel filter, air filter. I have accualy had a dirty air filter keep the car from idling. The car was fight so much to get air it could barly run. If all the usale suppects check out ok try droping some fuel injector cleaner in the tank.
10-22-2001, 06:36 PM
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<font face="Verdana, Arial" size="2">Originally posted by BitchinRS:
Have you check your EGR valve? If you have the 2.8L your in luck and you can accualy test it. The 3.1L use a digital EGR valve and none of the repair manuals tell you how to check them.
All though if it is trying to die before it is warmed up you might want to check the IAC,fuel filter, air filter. I have accualy had a dirty air filter keep the car from idling. The car was fight so much to get air it could barly run. If all the usale suppects check out ok try droping some fuel injector cleaner in the tank. </font>
Have you check your EGR valve? If you have the 2.8L your in luck and you can accualy test it. The 3.1L use a digital EGR valve and none of the repair manuals tell you how to check them.
All though if it is trying to die before it is warmed up you might want to check the IAC,fuel filter, air filter. I have accualy had a dirty air filter keep the car from idling. The car was fight so much to get air it could barly run. If all the usale suppects check out ok try droping some fuel injector cleaner in the tank. </font>
, in other words im in tip top shape, i will check the EGR valve and i need spark plugs soon, ac delco rapid fires should do the job just fine. ------------------
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87 V6 2.8 MPFI Camaro SC
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Modded dual snorkle intake "bottoms hacked off", K&N air filters, Crane Cams 8.5mm fire wire, Accel Cap and Rotor, MSDcoil. upcoming mods:
Dynomax CatBack exaust system = VERY SOON
crane cams camp shaft, CC roller rockers, double timing chain
10-23-2001, 10:50 AM
#13
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Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
My EGR's blocked off right now; the thing must be rusty inside- it would engage, and then it wouldn't disengage. (Then the car would stall, wouldn't start, etc...) So I blocked off the vacuum line with an old golf tee; I really gotta replace that valve soon (before January inspection!)
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-Tom P (Hot rodded 1986 Firebird 2.8l)
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-Tom P (Hot rodded 1986 Firebird 2.8l)
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