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Post by Hueneme805 on May 24, 2020 14:15:00 GMT -5
Hello group putting this tc back together and I’m running lean as my wideband shows when car warmed up. Currently I swapped vam/ oxygen sensor and fuel filter but still lean. Temp is at 180-200dg and at 10dg of timing but vacuum on boost gage shows up at 14 when it use to mark close to 20. Vacuum leak? Any suggestions thank you.
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Post by Stinger on May 24, 2020 18:00:43 GMT -5
Vacuum leak or mechanical issue.
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Post by Hueneme805 on May 29, 2020 22:05:29 GMT -5
Mechanical like how ?
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Post by Stinger on May 29, 2020 22:39:40 GMT -5
Something that makes the engine a less efficient air pump. Blown hg, valve leaking, piston ring issues, etc.
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Post by Hueneme805 on May 30, 2020 14:16:14 GMT -5
One thing weird is that in boost it’s not running lean it’s at 10.5-11.0. It’s only when normal driving/idle?
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Post by Stinger on May 30, 2020 15:52:37 GMT -5
That's typical for a mechanical issue.
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Post by Hueneme805 on May 30, 2020 17:15:12 GMT -5
So did a smoke test on car and found a leak in egr and in throttle body shaft which means the seals. Egr eazy repair but throttle body repair kits don’t exist for these cars. Just need the two seals. Will stock 5.0 throttle shaft seal work? Any one sell these parts or something
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Post by Stinger on May 30, 2020 17:48:06 GMT -5
Those leaks are typical and aren't there cause of the problem. I believe the part number for the seals has been posted on this forum before.
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