I have a 2002 trailblazer with the straight 6 4.2l engine. I had oil leaks galore. Replaced the power steering pump and lines as they where leaking or not working also. I had a mechanic with a lift do the valve cover gasket as I was given a very fair price. So fair the guy has avoided me when I asked him about the continued leakage. It wasn't his work as the timing cover was leaking also.
The place that diagnosed my timing cover leak quoted me $1115 for the job, as most of it was labor my friend in KY told me I could bring it down and we could do it together much cheaper.
I live in Michigan , and the road commission here loves to salt. I didn't think this would be a problem as it is a timing cover. The first day we got down to the crankshaft bolt and got stuck. The next day we got a bigger impact wrench and a bigger air compressor. No luck. Finally heated it up and got it to break loose. It looked like there was locktite on the bolt. I had a breaker bar flexed pretty good trying to get this out without heat.
Got the cover unbolted and couldn't pull the bottom out. that's when we discovered you have to take the oil pan off and disconnect a line or something running up to the cover. By this time I was pretty disappointed, it only got worse.
It has probably been discussed on here but the differential runs through the oil pan and they need to be removed to drop it. After working on that all day Saturday we had to give up. I rented a car and returned to Michigan.
With a porta power and huge prybar he got it loose a few days later. All of this to put some damn silicone on a cover. If GM would have put $.10 worth of antisieze on these parts it would have saved me a week of headaches.
We got it all back together and no leaks, but I was not saying good things about Chevy engineers.
The place that diagnosed my timing cover leak quoted me $1115 for the job, as most of it was labor my friend in KY told me I could bring it down and we could do it together much cheaper.
I live in Michigan , and the road commission here loves to salt. I didn't think this would be a problem as it is a timing cover. The first day we got down to the crankshaft bolt and got stuck. The next day we got a bigger impact wrench and a bigger air compressor. No luck. Finally heated it up and got it to break loose. It looked like there was locktite on the bolt. I had a breaker bar flexed pretty good trying to get this out without heat.
Got the cover unbolted and couldn't pull the bottom out. that's when we discovered you have to take the oil pan off and disconnect a line or something running up to the cover. By this time I was pretty disappointed, it only got worse.
It has probably been discussed on here but the differential runs through the oil pan and they need to be removed to drop it. After working on that all day Saturday we had to give up. I rented a car and returned to Michigan.
With a porta power and huge prybar he got it loose a few days later. All of this to put some damn silicone on a cover. If GM would have put $.10 worth of antisieze on these parts it would have saved me a week of headaches.
We got it all back together and no leaks, but I was not saying good things about Chevy engineers.
