Boost sometimes at -7.5 PSI at idle, engine surging
08-23-2005, 01:23 PM
#21
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Originally Posted by willwren
How well does your oil cap seal, and what'* the condition of your PCV and it'* o-ring?
08-24-2005, 01:57 PM
#22
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i use to have a rough idle and if i was going 40mph and i let it coast to a stop, the car would stall. it would try to stall at idle but it would never actually stall.
this was on my 01 alero (3400v6)
what i did (per recomendation of the manager at checkers) is take the idle air control motor out, its really easy to spot it connects by the throttle body, im sure someone here can point it out on a pic, and then clean it with brake parts cleaner. i pulled the pin out, sprayed it, pushed it in, sprayed it, and kept doing it untill all the black gunk came out. after that it ran like a charm, and only cost me $3
it was also intermitent, but it idled bad about 40% of the time...worth checking out
this was on my 01 alero (3400v6)
what i did (per recomendation of the manager at checkers) is take the idle air control motor out, its really easy to spot it connects by the throttle body, im sure someone here can point it out on a pic, and then clean it with brake parts cleaner. i pulled the pin out, sprayed it, pushed it in, sprayed it, and kept doing it untill all the black gunk came out. after that it ran like a charm, and only cost me $3
it was also intermitent, but it idled bad about 40% of the time...worth checking out
08-24-2005, 02:08 PM
#23
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Originally Posted by mikey
i use to have a rough idle and if i was going 40mph and i let it coast to a stop, the car would stall. it would try to stall at idle but it would never actually stall.
this was on my 01 alero (3400v6)
what i did (per recomendation of the manager at checkers) is take the idle air control motor out, its really easy to spot it connects by the throttle body, im sure someone here can point it out on a pic, and then clean it with brake parts cleaner. i pulled the pin out, sprayed it, pushed it in, sprayed it, and kept doing it untill all the black gunk came out. after that it ran like a charm, and only cost me $3
it was also intermitent, but it idled bad about 40% of the time...worth checking out
this was on my 01 alero (3400v6)
what i did (per recomendation of the manager at checkers) is take the idle air control motor out, its really easy to spot it connects by the throttle body, im sure someone here can point it out on a pic, and then clean it with brake parts cleaner. i pulled the pin out, sprayed it, pushed it in, sprayed it, and kept doing it untill all the black gunk came out. after that it ran like a charm, and only cost me $3
it was also intermitent, but it idled bad about 40% of the time...worth checking out
03-20-2006, 05:17 PM
#24
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I swapped the digital EGR valve with a spare, and the -7.5 PSI during idle problem hasn't happened since then. It'* been about 6 months and counting...
03-21-2006, 09:29 AM
#26
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Originally Posted by willwren
One of the pintles must have been stuck. A thorough cleaning should turn that into a good spare. Glad you got it!
03-21-2006, 10:59 AM
#27
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Funny. I JUST had my annual 'code 55' from the EGR. Happens once a year like clockwork. I don't normally remove it for that, simply spray a little teflon lube on the shafts and springs.
In case of debris blocking an orifice, remove it from the car and clean it really well with carb cleaner. Let it dry well, then lube with something teflon based and LIGHT. I use Rem-Lube from Remington. Green can. Most good sporting goods stores will have it.
Re-install with a new gasket.
In case of debris blocking an orifice, remove it from the car and clean it really well with carb cleaner. Let it dry well, then lube with something teflon based and LIGHT. I use Rem-Lube from Remington. Green can. Most good sporting goods stores will have it.
Re-install with a new gasket.
03-21-2006, 11:08 AM
#28
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Originally Posted by willwren
I don't normally remove it for that, simply spray a little teflon lube on the shafts and springs.
In case of debris blocking an orifice, remove it from the car and clean it really well with carb cleaner. Let it dry well, then lube with something teflon based and LIGHT. I use Rem-Lube from Remington. Green can. Most good sporting goods stores will have it.
Re-install with a new gasket.
In case of debris blocking an orifice, remove it from the car and clean it really well with carb cleaner. Let it dry well, then lube with something teflon based and LIGHT. I use Rem-Lube from Remington. Green can. Most good sporting goods stores will have it.
Re-install with a new gasket.
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