Why does my GM Truck make a noise when I start it up?
These engines generate noises during cold start and during warm operation that technicians may not be familiar with. The latest generation of full-size trucks and utilities incorporate a new generation of technologies not previously seen in a GM full-size truck and utility applications.
Why does my AC make a rattling noise?
A rattling noise may develop from the AC belt tensioner. This can be caused by an internal fault with the AC compressor. AC performance may also be diminished when this occurs.
What kind of engine makes noise during cold start?
These engines generate noises during cold start and during warm operation that technicians may not be familiar with. The new Small Block Gen 5 engine family incorporates Direct Injection (DI). This technology is included as standard equipment on all Generation 5 engines in the Small Block engine family which are the: 4.3L V6, 5.3L V8, and 6.2L V8.
Why does my GMC Yukon make a clicking noise?
This piston “slap” noise described appears to be manufacturer defect in 5. 3 liter engine where shipment of engines with cylinder heads that are oversized or pistons shipping as undersized is causing warping on piston head, hence the reason why the noise progressivly gets louder and longer lasting as time progresses.
Are there any issues with the GMC Yukon XL Denali?
There are also massive forum threads covering the issue with the pickup trucks. Watkins’ 2016 GMC Yukon XL Denali has had the driveshaft balanced and the tires and wheels switched out two different times, and yet the problems persist, especially the buffeting.
What are the problems with the 2015 GMC Yukon?
See all problems of the 2015 GMC Yukon . Lifter failure. Hoping no camshaft damage. 3 weeks waiting on parts that apparently can’t be found. Was driving approx 35 mph when horrible ticking noise occurred. Quickly assessed nothing in wheel well.
Why does my a / C rattle when I accelerate?
Please discard Corporate Bulletin Number 03-01-38-019 (Section 01 — HVAC). Some customers may comment about an underhood rattle noise heard on acceleration or a sudden loss of A/C system performance. This condition may be caused by liquid slugging of the A/C compressor.