Cant get a steady idle? Help plz
#1
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Car: 1984 Camaro Z28
Engine: V8 350 ci
Transmission: T-5
Axle/Gears: Posi, Disk brakes all the way aroun
Cant get a steady idle? Help plz
Hello, I just want to ask if anyone knows what may be happening to my car.
When the car is in Park and running the idle goes up and down from 900-1100rpms, sometimes "like now" it drops down more low perhaps 800rpms or lower, enough to sound if it were to die but it does not , instead jumps back up to 1100rpms and hovers around 1000rpm "unsteady idle".
Im thinking it just may be a air/gas problem? maybe timing? I dunno, but the car has also been suffering from lower then normal MPG also
any ideas would be great, Lates
When the car is in Park and running the idle goes up and down from 900-1100rpms, sometimes "like now" it drops down more low perhaps 800rpms or lower, enough to sound if it were to die but it does not , instead jumps back up to 1100rpms and hovers around 1000rpm "unsteady idle".
Im thinking it just may be a air/gas problem? maybe timing? I dunno, but the car has also been suffering from lower then normal MPG also
any ideas would be great, Lates
#2
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Location: Palm Bay, Florida, USA
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Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
Re: Cant get a steady idle? Help plz
Hello, I just want to ask if anyone knows what may be happening to my car.
When the car is in Park and running the idle goes up and down from 900-1100rpms, sometimes "like now" it drops down more low perhaps 800rpms or lower, enough to sound if it were to die but it does not , instead jumps back up to 1100rpms and hovers around 1000rpm "unsteady idle".
Im thinking it just may be a air/gas problem? maybe timing? I dunno, but the car has also been suffering from lower then normal MPG also
any ideas would be great, Lates
When the car is in Park and running the idle goes up and down from 900-1100rpms, sometimes "like now" it drops down more low perhaps 800rpms or lower, enough to sound if it were to die but it does not , instead jumps back up to 1100rpms and hovers around 1000rpm "unsteady idle".
Im thinking it just may be a air/gas problem? maybe timing? I dunno, but the car has also been suffering from lower then normal MPG also
any ideas would be great, Lates
Does the motor diesel at all when you shut it off? Check all the electrical connections with that carb...and if it has some kind of IAC/Air bypass valve, try disconnecting it and restarting. Also check that your base timing isnt too low. Typically surging is a symptom of either a rich a/f mixture, too low base timing, too low base idle setting, or a faulty sensor reading, typically TPS, thats causing the computer to keep playing with the IAC valve trying to achieve a stable idle but its too out of spec.
Last edited by Nixon1; 02-28-2008 at 10:22 PM.
#3
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Car: 1984 Camaro Z28
Engine: V8 350 ci
Transmission: T-5
Axle/Gears: Posi, Disk brakes all the way aroun
Re: Cant get a steady idle? Help plz
dopey me forgot to put that this is for a 1991 geo strom 1.6l, I thought I someone might know but I do beilve it may just need to have the timing done and the belts replaced.
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Car: 91 RS, t-topped, man trans.
Engine: 350cid 350Hp crate motor
Transmission: t5 with new stock clutch and parts
Axle/Gears: 3.08 stock -RS
Re: Cant get a steady idle? Help plz
palm bay close to miami?
#5
Re: Cant get a steady idle? Help plz
get some carb cleaner and take the idle air control from the engine.un plug it.take it out.spray the idle air control until it is clean.spray the hole it goes into too.screw it back in and plug it back in.real simple.you will find that its covered with gunk.i will run smoother .promise. cam/am
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