1990, 2.2 Timing chain?

57LXI

MEMBER
1990 ALL OTHER MAKES ALL OTHER MODELS

1990, 2.2, 126000 miles, AT, non-factory AC. Car has a pinging problem under load. No codes. Went to higher grade fuel, no luck. Changed plugs, no luck. Replace o2 sensor (had orginial) no luck. Did find a blown TBI to manifold gasket during a extensive vaccuum check, fixed it. Pinging problem not as bad. It will not ping when power braking in drive. I suspect now that timing chain/gears/tensioner need replacing. Car has DIS so I can't play with the timing. Car runs fine 'cept for the pinging issue. Plug read shows very good burn, light brown on all 4. Compression even across the board.

Thursday, May 24th, 2007 AT 1:17 PM

1 Reply

E40WATER12

MECHANIC
522 POSTS

I would look into getting the timiing chain replaced, Sort of a pain in the butt to do, Its not to bad of a job. I had them same problem with one of my 2.2L corsica, I end up changing the timing chain as well, It corrected the problem, I also did a psi test on my fuel pump was getting weak as well, And added a new fuel filter.

Good Luck.

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Thursday, May 24th, 2007 AT 2:51 PM