uglyota
11-14-2003, 10:17 AM
Drove the chevy around all yesterday afternoon. Parked it in the driveway, worked on the Yota for a while, tried to start the chevy and it wouldn't fire. Turns over great (actually pretty fast, but I'll get to that) but doesn't even try to start. When i was working on the yota, I had a piece of sheetmetal in the bed of the chevy, using it as a welding table, but always had the ground attached to the piece that I was working.
When I put the key in and turn it to "on", I don't hear the fuel pump whine. When I'm turning it over, I don't hear it whine (gas cap off, ear to tank). Now that I think about it, it seems like the pump was whining particularly loudly in the last few weeks. I also have known several people to have to replace fuel pumps on 350s around 125k. My truck has 127,000 on it.
My first thought (hope...I put 22 gallons in just the other day) was fuses. They are all fine in cab and underhood. Next thought was the fuel pump relay. Turner came over with a Tahoe and we swapped in his relay--to no avail.
Is there any other test for the fuel pump without actually pulling it? The Yota has a connector that you can short out to force power to the fuel pump. Is there anything like that on this truck?
Also, after turning it over like 10 or 12 times, there is no gas smell in the engine compartment.
My only other guess is the timing chain. It seems to turn over really fast, but I don't think I've ever heard of a tchain going out on a 350 at 127k, and the truck really hasn't been abused, maintained meticulously, etc. Maybe it's just my hella-strong battery (I gaht Optimah!). That wouldn't explain the fuel pump, though. Does the top end of the engine have anything to do with the fuel pump circuits? Is the Vortec an interference motor?
I haven't checked for spark. I should probably do that.
The only thing that throws me off is that it drove fine all afternoon and then wouldn't start, which makes it so much harder to diagnose:(
If it ends up being the fuel pump, does anybody have a spare lying around? Suggestions on where to get a good one? Is this a Carter, and do the parts stores stock them, or do I have to go bend over for Sterling Chevy? Aftermarket upgrades and where to get them?
Thanks in advance
Eric
324-0670
When I put the key in and turn it to "on", I don't hear the fuel pump whine. When I'm turning it over, I don't hear it whine (gas cap off, ear to tank). Now that I think about it, it seems like the pump was whining particularly loudly in the last few weeks. I also have known several people to have to replace fuel pumps on 350s around 125k. My truck has 127,000 on it.
My first thought (hope...I put 22 gallons in just the other day) was fuses. They are all fine in cab and underhood. Next thought was the fuel pump relay. Turner came over with a Tahoe and we swapped in his relay--to no avail.
Is there any other test for the fuel pump without actually pulling it? The Yota has a connector that you can short out to force power to the fuel pump. Is there anything like that on this truck?
Also, after turning it over like 10 or 12 times, there is no gas smell in the engine compartment.
My only other guess is the timing chain. It seems to turn over really fast, but I don't think I've ever heard of a tchain going out on a 350 at 127k, and the truck really hasn't been abused, maintained meticulously, etc. Maybe it's just my hella-strong battery (I gaht Optimah!). That wouldn't explain the fuel pump, though. Does the top end of the engine have anything to do with the fuel pump circuits? Is the Vortec an interference motor?
I haven't checked for spark. I should probably do that.
The only thing that throws me off is that it drove fine all afternoon and then wouldn't start, which makes it so much harder to diagnose:(
If it ends up being the fuel pump, does anybody have a spare lying around? Suggestions on where to get a good one? Is this a Carter, and do the parts stores stock them, or do I have to go bend over for Sterling Chevy? Aftermarket upgrades and where to get them?
Thanks in advance
Eric
324-0670