I thought it was a tappet clattering, but it only does it sometimes, mainly when it is cold right out of the garage. When the car sits in the sun all day at work, no noise on the way home. My brother says it is not mechanical, but sounds more like the tach cable. I can sit an rev the negine and nothing, no noise at all, but as soon the the car is moving you hear it. Is it the cale? How do I fix/replace it?
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The firing order is 1-3-4-2. The gap is listed on the emission information sticker under the hood. This sticker will have lots of info which includes valve lash. It will be listed in millimeters, example: 0.22 +/- .02mm. Some feeler gauges list both standard and mm measurements, otherwise a conversion can be found without much trouble. This procedure should be done while the engine is cold to get the best results.
sounds like a tappet,could be a ping caused by low grade of gas. hows the oil pressure. sometimes when oil pump is weak it will cause this when car warms up. will also do this if car is overheating...hope this helps some and good luck.
is this even in summer time, or has this just started occuring since winter got here... if its since winter got here, its perfectly normal to hear the valves clatter when the engine is cold.... if it knocks in summer time also, you have something a little more serious goin on, could be rods, could be the mains, could be both rod and main bearings, lifters, scarred cam... but being this new of a vehicle, id say its just a clatter from the lifters being in cold weather.. hope this eases your mind a little
hydraulics lifters you must replace as they will wear out.
solid tappet lifters can just be adjusted for. Unless you have some custom old engine in yours I'd imagine yours is the first.
You might also try running some pennzoil or quaker state oil to reduce clatter. They're wax based and will often do wonders for semi-clogging the right areas while keeping the other places open. Great for hi mileage motors.
Clean air and fuel filter. Check the spark plugs for corrosion or debris. If the above does not eliminate the problem, I suspect that the tappets need to be replaced. Tappets are located above the piston and can wear out if air filter is damaged. Even a slight edge wear can make the car rattle in idle mode. Even if only one tappet is faulty, all have to be replaced. Usually the cost is mainly of the parts; service costs are only a small fraction. Visit your local repair service.
valve guides worn and tappet adjustment required, can check tappet adjustment first to see slightly better before removing heads and getting valve guides repaired/replaced on heads common problem
if raise revs to 1500-2000rpm and hold does clatter come and go come and go (valve guides) if there all the time tappet clearance issue
if there only under load (1st rev up) for a couple of times then stops possible big end bearing
all these are common for this engine
From what you're saying, it sounds like the lifters are tapping, almost like a clicking if i'm correct. Go to Advance Auto Parts, and buy some Seafoam in a can, you can pour some directly into your oil, and the noise should sieze. Also pour some in your gas, it really helps the engine. If you ask the cashier, they will take you right to it.
Trace the source of the sound and see if its hooked into the fuel lines as it sure sounds like a pump but it could be your tappets too.If you could find the noise and provide a little more info it would be a more accurate answer