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What causes valve noise on startup?
are you sure is a valve noise?? or is a piston slap?
Should the canister purge valve make noise?
Yes, it'll make noise when it's signaled to purge, an for up to 30 seconds afterwards. That noise is going to be from air being evacuated from the canister.
What could cause your car to make a ticking noise when you turn it on?
you may have a bent valve
Can a PCV valve make noise?
My car, a 2008 Audi A4 Turbo was experiencing a cyclical chirping noise, similar to a noisy fan belt ( which it does not have). A defective PCV valve was found , however, the car after being repaired is still making that noise.
What would make a clicking noise in a cylinder head 1984 Vanagon?
valve who needs ajustment
What causes a vehicle to make a noise that sounds like an exhaust leak or valve tappet noise when the motor has a load on it that it does not make when reved up in neutral?
check the cadillidic converter under the car.
What does the knock sensor make the engine do?
It retards / slows the engine timing up when it detects an engine knock / pining noise like bad fuel are valve noise.
Why do the rockers make noise?
Because the gap between the rocker and the valve is too big and what you hear is the rocker slapping the valve stem. Get yourself a manual for your car and find the valve gap so you can adjust them properly.
Would a low pressure turbo give a good blow off valve noise?
All turbos will give a blow off valve noise but the higher the pressure in the boost pipes (eg) higher boost, the louder the blow off noise and if you have a recirculation valve remove that with a remap and the noise will be even louder.
What are tapping valves?
Tapping valves is a noise made by too much clearance between the valve lifter and the valve. Modern engines have hydraulic lifters. If you have too little oil pressure or run the engine low on oil, the lifters will make noise. The lifter can also wear out.
You come to a stop and where you start to go the car make a noise and acts like to emergency brake is on?
Sounds like the porselin Valve!!!!
Would a bad bearing cause your engine to be hard to turn over and make a loud banging noise under the valve cover?
It can.
