CLICKING/KNOCKING ENGINE NOISE AFTER STALLING IN HIGH WATER
I recently stalled my 98 camry in high water, but was able to push the car out and get the car started - within an hour of that I developed a clicking noise that speeds up as the engine rpm is raised coming from the top of the engine as heard around the center of the valve cover - the noise usuallly starts a few seconds after start up and goes away at highway speeds - it usually returns after sustained use and the car returning to idle. It takes a few seconds for the noise to start when the car is started. While heard regularly, the noise will disappear at times (sometimes hours) just to return later. Sometimes the noise seems more like knocking at idle speeds in lieu of valve noise. I have flushed the oil several times, burned all the gas out and used multiple gas treatmens/dryers. No engine light, the car runs and accelerates normally - no other signs of problems. The noise seems to be diminished with octane boosters and gas additives. Could the catalytic converter or oxygen sensors been damaged by water submersion without a code appearing, causing the fuel mixture to be out of whack or the engine timing to be mis adjusted by the computer based on a component failure. I sometimes think the problem has gone away, just to be disappointed. The problem is about 6 weeks old now.
September 6, 2007.
September 6, 2007.
Check out the related content below while we wait for the question to be answered by a professional mechanic.
The car start to have this chirping noise after i changed differential oil for AWD in a car shop (don't know if this D oil change can be related to the noise or not), the squeaky/...
7 answers • 2011 Acura TL • 46,000 miles
I have a winning noise that is coming from the engine. The noise comes from the engine, when you start the car the noise is there. And when the car gets warmed up the noise is not as ...
5 answers • 2002 Buick Rendezvous • 165,000 miles
Lately when i start my car, sometimes it'll make a static squeak like noise, also when shifting in neutral the static noise stops but the squeaky noise continues and gets a little ...
1 answer • 2000 Dodge Neon • 223,000 miles
Makes clanking noise while on fwd and reverse... drive shaft was removed to decrease sound. Just bought this truck under the promise that only bearings needed to be replaced.. Upon ...
3 answers • 1999 Chevrolet Silverado • 148,000 miles