Timing Tensioner Problems of Chevrolet S10

Engine rattles due to balance shaft between 1800 and 2000 rpms, replace with timing tensioner kit. Gm has a fix for this with a TSB number and all, but will only fix vehicles with original 3 year 36,000 mile warranty. They literally invented a part to install that should have been installed from the factory due to overwhelming complaints. I was under my gm 5 year 75,000 mile warranty and they even had my engine apart rebuilding under warranty and would not install the new timing chaintensioner to eliminate rattle. The rattle indicates meteal on metal contact, and eventual wear. I had a warranty, and they would not fix it. Very frustrating. We ended up buying a Toyota tacoma for my wife, thus ending any future purchases with gm. I still have truck, and may pursue this in court. It basicaly affects every 4. 3l eqipped gm vehicle, so they only pick and choose who to fix. It is hot or miss at some dealers according to other owners.

See all problems of the 1999 Chevrolet S10 🔎.

Timing chain noise conditions. Inspector from ge capital inspected the vehicle based on the extended warranty contract. Inspector indicated that oil change maintenance had not been maintained on vehicle and indicated oil was very black. Oil changes were done on this vehicle every 3,000 miles. Self-maintained vehicle for oil changes. Last oil change: 35,718. Oil used was western auto oil, 10w30 advan. Technical service bulletin 87-61-21a, April 1998, subj: timing chain noise condition (replace timing chain). Condition: vehicle may exhibit a clattering noise at idle speed originating from the timing chain and front cover area. Chain wear in excess of the maximum travel of the timing chain tensioner may create noise that may be objectional to some customers. Cause: lack of regular maintenance, as ref in owner's manual and the resultant lack of lubrication and buildup of deposits inside the engine may accelerate wear of the timing chain. In addition, there is a small lubrication hole in the front oil passage plug that could become blocked with debris if proper engine maintenance is not followed. Correction: if the owner of the vehicle indicates a noise concern, inspect the timing chain and tension. In addition, confirm oil flow from the front oil passage plug and replace the timing chain, timing chain tensioner, and both the camshaft and the crankshaft sprocket if necessary to correct the noise.

See all problems of the 1996 Chevrolet S10 🔎.