Question about GMC Cars & Trucks
Ticking noise that vary with the rpm indicates a tappet/ cam follower fault or worn rocker bushes and shafts . Where teh racker touches the valve end may be worn and have a spot that is slippng on the valve end and taking up the wear.. Check the top end for this problem. Check for bits loose on the drive belts and if you have a rubber timing belt check it out also
Posted on Oct 23, 2013
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Posted on Jan 02, 2017
SOURCE: Ticking noice
If your not already, try using a genuine Nissan oil filter next time you get your oil changed. Most aftermarket filters allow the oil to drain back so when you start up cold the filter is in essence dry and not primed most likely causing the noise your experiencing. This would be the first thing I would reccommend checking.
Posted on Sep 16, 2008
DOES IT HAVE A LOT OF MILES ON IT OR MAY BE THE OIL PUMP IS IS GOING OUT? THERE IS A SPRING IN THE PUMP THAT IS A BYPASS FOR HOW HIGH PSI IT MAY HAVE BROKE THAT WILL GIVE YOU LOW PSI.
Posted on Jan 18, 2009
I bought a used 05 Silverado and it had started to get a ticking noise. I had one of the lifters replaced as it was determined that it was sticking. A week later the oil pump went. Replaced the pump and have not had any issues since.
Posted on Apr 21, 2009
The Denali's are really susceptible to front dif. wear and failure. Because it is AWD, the front dif is always working unlike a 4WD. GM, in order to lighten up the front end built the front dif in aluminum. If it was the same as the rear, it would be bullet proof, but much heavier. After about 80,000 miles it is common to have bearings failing. Remove the drain plug which happens to be magnetic. You may see more than just the normal fine filings. You will likely see larger chunks of metal some of which is not even magnetic but will drain out with the oil. You are likely looking at a $1500 rebuild. It will get much louder and run for a long time before it really goes south.
Posted on Jun 21, 2009
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