HELP, car not running on all cylinders!
09-12-2006, 11:41 PM
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HELP, car not running on all cylinders! Car was driving perfectly all day today. Then I went to a friends house, came out a few hrs later start it up and start driving and notice it is sounding like my old supra. Then when i get onto a main road and try to give it gas it bucks but goes and even when i am cruising i feel the car bucking, as if i am varying the pressure of the gas pedal the whole time I am driving.
I just got my car back from a clutch install yesterday and due to my slipping clutch I havent really gotten on the car at all over the last couple months and today the car maybe saw 6k in 2nd once, but pretty easy driving.
the strange thing is the car is not pulling any codes
did a test by unplugging each coil individually, the only one that didnt do anything was the back cylinder on the driver side, replaced the spark plugs on that side and nothing, switched the coil with another one from the same side, it seems like the problem is a little bit better but still really bad
(that may also be my imagination that it got any better).
the car is a heads and cam 01 z06, dont know the specs on what valve springs were used since the previous owner did that.
Any ideas on what it may be before I take it to a mechanice and get overcharged??
I just got my car back from a clutch install yesterday and due to my slipping clutch I havent really gotten on the car at all over the last couple months and today the car maybe saw 6k in 2nd once, but pretty easy driving.
the strange thing is the car is not pulling any codes
did a test by unplugging each coil individually, the only one that didnt do anything was the back cylinder on the driver side, replaced the spark plugs on that side and nothing, switched the coil with another one from the same side, it seems like the problem is a little bit better but still really bad
(that may also be my imagination that it got any better).
the car is a heads and cam 01 z06, dont know the specs on what valve springs were used since the previous owner did that.
Any ideas on what it may be before I take it to a mechanice and get overcharged??
09-13-2006, 08:14 AM
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Originally Posted by Reckless
How do you know it is not firing all cylinders? If a particular cylinder is missing, it may be a broken valve spring. At least that is what i would check first.
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09-13-2006, 05:13 PM
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Spring!!!!
Check em even if they look ok... try pushing the retainer by hand. Just went through hell with this issue, had three intake springs go totally 'soft' on me...
Good luck!
Check em even if they look ok... try pushing the retainer by hand. Just went through hell with this issue, had three intake springs go totally 'soft' on me...
Good luck!
09-14-2006, 12:21 AM
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Originally Posted by BeachZ
I don't think it's a spring. It if was, he'd definitely be getting a random misfire code. Sounds more like a vacuum leak, or maybe a broken spark plug wire.
could also be an injector
