rpm drops when at idle - Team Camaro Tech
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post #1 of 4 (permalink) Old Nov 4th, 01, 03:42 PM Thread Starter
Join Date: Oct 2001
Location: charlotte
Posts: 17

for some reason my rpms normally are at 1,000 when at idle, and sometimes now they drop all the way down to 500 on occasion, and even while im driving at a low speed and let off the gas it will drop below 1,000. this cant be good for the car, it sounds almost like it will shut off sometimes. i got a lil oil leak coming from a valve, but i dont think that has anything to do with it. the oil pressure also acts funny sometimes too. maybe the fuel injectors are clogged up, i really cant figure out what the problems are. if you have any ideas please tell me.
purplecamarov6 is offline  
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post #2 of 4 (permalink) Old Nov 4th, 01, 05:42 PM
Senior Tech
Join Date: Oct 2001
Location: milw,wi,usa
Posts: 159

I've experienced port fuel injected cars wanting to die after letting of the gas and coming to an idle.In a few of those instances there was a build up of 'coking' which is like hard dried up carbon packed around the BACK side of the throttle plate and sometimes also plugging up part of the idle air control valve passage.Pull the ducting off of the throttle body and open throttle up and see if thats the problem.If it's bad enough you can pre soak it with carb spray and chip away at it with something you won't gouge the throttle bore with.Don't let the crap get into the intake.Let me know if that's what you found.
sschevyfan is offline  
post #3 of 4 (permalink) Old Nov 5th, 01, 08:51 AM
Senior Tech
Join Date: May 2000
Location: Westlake, OH 44145
Posts: 707

Need Veh info!!!!
Milan is offline  
post #4 of 4 (permalink) Old Nov 8th, 01, 08:52 AM
Join Date: Nov 2001
Location: Buffalo, NY
Posts: 11

Hey- if you have an automatic you might want to check your park/neutral switch. I used to work at a Chevy dealer and I've seen that cause a lousy idle more than a few times. A stuck EGR, tired IAC or that 'coking' in any of those passages could definitely do it too. Well good luck
Lowaholic is offline  
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