Idle problem...
#1
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Hello all! Here is a new one for you. I need idle problems experts. Well, it never happend before to my car but for the last three or four days i've been having some fluctuating idle problems when i first start the car.
*** Here is what happens: I start the engine, (regardless if it's cold outside or not) and just like every normal cold engine the idle at first is at the 800-1000 rpm range. It's there only for the first 10 seconds and then i starts to move up and down. It goes up to 1400rpm and then goes down to 800, then again it goes slowly up and down. This repeats for ONLY 2-3 minutes OR until i rev the engine a few times to 2k+ rpm. After this, my idle is back to normal for the rest of the day - it doesn't even try to fluctuate.
If i park the car for more than few hours and i start it again - the same thing repeats for the first 2 minutes or less.
This started to happen right after i replaced my accessory belts few days ago. I don't know if they can be related to it.
What should i look for since it is not a constant problem that appears the whole time???
My fuel filter is 20-25k miles old (i use only 91, good quality gas), my spark plugs are BOSCH 4+ (50k miles old), my air filter is almost new, Oxy sensor is 20k miles old, i run Techtron Fuel System cleaner every 5k miles... There is no loss of power or weird noises. ***
2 years ago, my mechanic told me that my Idle Trotle switch is bad. I don't know why he said it because i really never had any problems with idle and etc. I never replaced that switch and i never had a problem until this week.
Could the reason for my problem now be this switch??
This is the 10V 2.3L engine with 155k miles on it.
Thanks for any help!
*** Here is what happens: I start the engine, (regardless if it's cold outside or not) and just like every normal cold engine the idle at first is at the 800-1000 rpm range. It's there only for the first 10 seconds and then i starts to move up and down. It goes up to 1400rpm and then goes down to 800, then again it goes slowly up and down. This repeats for ONLY 2-3 minutes OR until i rev the engine a few times to 2k+ rpm. After this, my idle is back to normal for the rest of the day - it doesn't even try to fluctuate.
If i park the car for more than few hours and i start it again - the same thing repeats for the first 2 minutes or less.
This started to happen right after i replaced my accessory belts few days ago. I don't know if they can be related to it.
What should i look for since it is not a constant problem that appears the whole time???
My fuel filter is 20-25k miles old (i use only 91, good quality gas), my spark plugs are BOSCH 4+ (50k miles old), my air filter is almost new, Oxy sensor is 20k miles old, i run Techtron Fuel System cleaner every 5k miles... There is no loss of power or weird noises. ***
2 years ago, my mechanic told me that my Idle Trotle switch is bad. I don't know why he said it because i really never had any problems with idle and etc. I never replaced that switch and i never had a problem until this week.
Could the reason for my problem now be this switch??
This is the 10V 2.3L engine with 155k miles on it.
Thanks for any help!
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