engine rattle
#21
All modern GM cars now are DEXOS recommended, even 2006 HHRs. It is not legal to require unless it is provided free. And, liker I said most semi-syn and full syn oils are DEXOS, the ones that aren't are the "boutique" brands that won't pay the fee.
#22
So after replacing the tensioner, and a few days of listening at a cold start, the rattle is still there. While the cover was off, I didn't see any broken pieces of the guides, or anything that didn't look right. However I have noticed that the rattle noise doesn't seem to last as long now, and is almost, faster? If that makes sense.
#26
After reading through several threads. I have have two questions:
Thanks in advance!
- If the tensioner went bad, would the chain become lose and then set off a CEL?
- If a lose chain sets off a CEL, and I hear a rattle from the chain area, but don't have a CEL, is it safe to drive?
Thanks in advance!
#27
After reading through several threads. I have have two questions:
Thanks in advance!
- If the tensioner went bad, would the chain become lose and then set off a CEL?
- If a lose chain sets off a CEL, and I hear a rattle from the chain area, but don't have a CEL, is it safe to drive?
Thanks in advance!
#29
I had a local auto service place replace the timing and balance chains, and water pump.
The noise I heard was from a guide that was broken and the chain was grinding one of the bolts.
Thanks to everyone here for your help.
The noise I heard was from a guide that was broken and the chain was grinding one of the bolts.
Thanks to everyone here for your help.