heavy knok under acceleration

gadget73

I'm an air-conditioned gypsy

Join Date: Jan 2005

Posts: 43570

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#16

09-04-2008, 01:52 AM

If you had some bad gas, I would suggest changing the fuel filter to see if that helps. 80C is fine, maybe a little low but not anything to be concerned over. (176F).

The PCV valve is always open while the engine is running. Make sure its pushed into the rubber grommet fully. If its laying on the back of the engine and pulling air, that might slightly contribute to the problem, though I doubt it. If the emissions readings are OK, and the engine isn't running hot, the cats may not actually be the problem.

Last edited by gadget73; 09-04-2008, 01:54 AM.

86 Lincoln Town Car (Galactica).
5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

91 Lincoln Mark VII LSC grandpa spec white and cranberry

1984 Lincoln Continental TurboDiesel - rolls coal

Originally posted by phayzer5
I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers
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