Idle problems?
03-22-2005, 04:09 PM
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Idle problems?
ive noticed only in idle the engine idles rough, when i put the car into drive its fine even at lights, what could cause the idle all of a sudden to go bad? the only 3 things ive done to the car is install a K&N filter to the stock airbox, PCV, and install a fuel filter, its an aftermarket one, think the filter is causeing the problem?
03-22-2005, 05:17 PM
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How long have you had the new filter in? Did you pull the MAF screen?
Usual culprits of rough idle:
Clogged injectors.
Misfires (plugs, wires, coils)
MAF sensor
IAC sensor
IAT sensor
vaccum leak
Usual culprits of rough idle:
Clogged injectors.
Misfires (plugs, wires, coils)
MAF sensor
IAC sensor
IAT sensor
vaccum leak
03-22-2005, 10:02 PM
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Originally Posted by Rogue
How long have you had the new filter in? Did you pull the MAF screen?
Usual culprits of rough idle:
Clogged injectors.
Misfires (plugs, wires, coils)
MAF sensor
IAC sensor
IAT sensor
vaccum leak
Usual culprits of rough idle:
Clogged injectors.
Misfires (plugs, wires, coils)
MAF sensor
IAC sensor
IAT sensor
vaccum leak
03-22-2005, 10:33 PM
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yeah i just noticed my car doing that today. right when i started the car, it idled really rough. almost reminds me like a lawnmower starting.
03-22-2005, 10:35 PM
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my mom'* 2000 SSEi has done that since we bought it 2 years ago. never did figure out why it did it. my 97 L67 did NOT have the same problem though and it had the same chassis as the 2000+ Bonneville.
03-22-2005, 11:44 PM
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Originally Posted by Custom88
my mom'* 2000 SSEi has done that since we bought it 2 years ago. never did figure out why it did it. my 97 L67 did NOT have the same problem though and it had the same chassis as the 2000+ Bonneville.
03-23-2005, 07:35 AM
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If its really bad its probably a vac leak. Check the vac line and T that run under the SC snout and behind the motor to underneath the MAP sensor.
03-23-2005, 08:58 AM
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Originally Posted by chasmanz28
Originally Posted by Custom88
my mom'* 2000 SSEi has done that since we bought it 2 years ago. never did figure out why it did it. my 97 L67 did NOT have the same problem though and it had the same chassis as the 2000+ Bonneville.
I just don't know what causes it. It has been bad enough before that the engine has stalled though however. Oh, and my 01' Aurora has a vibration at idle too although I don't know if it'* just the 3.5 that idles a little rougher than the 3800 or what. Seems to be common to the 2000+ H body regardless though.
03-23-2005, 09:37 AM
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Originally Posted by Rogue
If its really bad its probably a vac leak. Check the vac line and T that run under the SC snout and behind the motor to underneath the MAP sensor.
