Recent content by francerichard

Okay. I changed the oil and filter using Valvoline 5w30 and an AC filter. My oil pressure is the same as before. My noise that i am hearing is the same as before. I put my Envoy up on jack stands and started it up. I had my son hold the rpm at 2000 while I was under it listening for the noise...

I have only had this Envoy for a short time. I bought it from the original owner and he had always had it serviced at the GM dealer. He had just had the oil changed there before I bought it. I put 4000 miles on that oil change. I had been experiencing the issues I listed above for about 3000 of...

I have always used Lucas. My Bonneville that I bought with 30,000 miles on it, alwasys got 1 quart of Lucas with 4 quarts of Valvoline. It had over 400,000 miles on it and still running strong when the rear suspension rusted out from under it.

I'm using Valvoline 5w30 semi synthetic. 5.5 quarts of oil and 1. 5 quarts Lucas oil stabilizer. It is finally a warm day here so I just got back from doing about 90 mile round trip drive. Mostly 70 mph. I kicked it into passing gear several times up to 6000 rpm. I pulled off to the side of the...

My Envoy is approaching 170000 miles and has developed an engine noise like a rod bearing knocking. I have my OTC mechanical oil pressure gauge installed. At a cold startup, I see 80 pounds of pressure on the gauge and have no engine noise at idle. Driving down the road, the oil pressure gets...