My mechanic buddy is out for the weekend, thought I'd check here.
My Blazer (5.0L) starts up and idles just fine. When I take off from a dead
stop it hesitates/bogs down for a second. It doesn't really pick back up
and it usually involves some fancy footwork on the accelerator to get it
going. A couple of times it's died.
Also, I'll be driving down the road, and it starts stumbling, like it's out
of gas. I can pump on the gas, and it'll keep moving, but the problem
doesn't seem to be solved, rather it just clears up.
And it's occasionally running hotter with the A/C blowing. Hotter than it
did last summer. Overall, there is much less power, and much more fuel
consumption. A week of driving to work and back would leave me with extra
gas, but now I'm barely making it 4 days without another fillup.
As I type, it's cooling down, and I'm about to replace the fuel filter. I
priced a fuel pump--chump change... but if the filter isn't a problem I was
gonna change the pump. This truck has 156,000 miles on it. It was a Police
truck, so one would assume the maintenance on it was pretty good. But I
don't have a list of what was done and when. I'm strictly a wrench turner.
I'm not the best at diagnosing these things on my own, and I don't want to
replace parts until I find the problem. But it seems fuel related...
FYI, folks have been throwing suggestions at me. Someone said head gasket.
The truck isn't losing coolant or oil, and when I changed the oil last week
there was no sign of coolant in there. No leaks around the heads that I can
see. And again, it idles just fine. Most head gasket related problems I've
seen were causing much more serious symptoms. And the stumbling I'm
experiencing isn't consistent. Most head gasket issues I've seen were not
I was told to check the catalytic converter... that doesn't seem to be an
issue, and I've consulted 3 muffler shops who said (based on my troubles)
that the cat wasn't the culprit, and furthermore that they would NOT take my
money and replace the thing.
Any and all suggestions would be greatly appreciated.