Engine Idle Low
Thread Starter
Intermediate
Joined: Jul 2009
Posts: 409
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From: VA
Engine Idle Low
My 04 LS Modern Lux has about 115k on it now. Replaced 8 spark plugs about 10k miles ago since my engine idle low at around 400rpm.
My engine idle is still low after the new spark plugs, any ideas on why it's low or is there a way to increase it?
My engine idle is still low after the new spark plugs, any ideas on why it's low or is there a way to increase it?
Thread Starter
Intermediate
Joined: Jul 2009
Posts: 409
Likes: 32
From: VA
Thread Starter
Intermediate
Joined: Jul 2009
Posts: 409
Likes: 32
From: VA
Thread Starter
Intermediate
Joined: Jul 2009
Posts: 409
Likes: 32
From: VA
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CL Community Team
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From: Alabama
Did the low idle really start at spark plug change? If so then it may be something was messed up during the process of installing the plugs. Go back and inspect all rubber fittings, vacuum hoses and electrical connections anywhere in the engine bay and particularly around areas that might have been touched/bumped during the spark plug work. Look for disconnected items or just loose or partial or torn connections in any of the air/vacuum hoses and or electrical connections. its worth a shot to double check if the low idle actually started right after the plugs were replaced. I assume the plugs are right type and were installed properly.
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Thread Starter
Intermediate
Joined: Jul 2009
Posts: 409
Likes: 32
From: VA
The happens before the plugs was changed also. I think it's the cheap gas.
"I know they are not the issue, but does idle come back to normal when any of those two are operational?"
Nope, seems like it would stay around 400rpm. I think it's the gas.
GRAND_LS_4, where are you located in NOVA? I've lived up there for 20 years.
Currently reside in Richmond VA
"I know they are not the issue, but does idle come back to normal when any of those two are operational?"
Nope, seems like it would stay around 400rpm. I think it's the gas.
GRAND_LS_4, where are you located in NOVA? I've lived up there for 20 years.
Currently reside in Richmond VA
Last edited by toantran99; May 3, 2010 at 09:58 AM.
Driver School Candidate
Joined: Dec 2010
Posts: 43
Likes: 1
From: CA
I cant fix this problem, I did so many things but the RPM stays the same low, I did clean the throttle body, change spark plugs for ngk iridium, clean MAF, put lucas fuel igector cleaner, 2times disconnect battery, look for the air leak in intake, no luck.
Actually the problem appears, after I disconnect the battery, for 1 time after I bought the car.
Cant get after 200 mile run, evap system monitor ready.
Actually the problem appears, after I disconnect the battery, for 1 time after I bought the car.
Cant get after 200 mile run, evap system monitor ready.