Thump and knock

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Thump and knock

DWBOX2000 Thump and knock 05-12-2022, 04:42 AM

Stl-986 uh...replace the o2 sensos... 05-12-2022, 09:40 AM

JFP in PA On the early (pre-2000) cars,... 05-12-2022, 12:29 PM

DWBOX2000 Thanks, should I start with... 05-12-2022, 12:51 PM

JFP in PA What you should be doing is... 05-12-2022, 01:52 PM

Stl-986 Would also add to the list... 05-12-2022, 05:02 PM

Stl-986 did he have a k&n filter... 05-12-2022, 05:03 PM

05-12-2022, 04:42 AM	#1
DWBOX2000 Registered User Join Date: Oct 2015 Location: Scituate MA Posts: 924	Thump and knock My friends 99 986 base has the codes p1128 and p1130. It seems to idle okay but under throttle, the power cuts in and out (we actually stalled driving) and there is this thud coming from I believe the left side. It starts fine every time. He described as thumping and choking? Car has just under 100k on it. Any thoughts on easy first steps? Thank you.

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