Joined
·
18 Posts
Guys, got a problem here that I can't figure out. I have an 89 4.3L blazer with 163,000 miles. For about 6 months now, when cold, she'll stumble bad off idle. The power slowly comes back to me. It doesn't do it every time, but often. ONce warm, it runs good. Also it idles not very well when cold (rpm goes up and down sometimes).
I've replaced (for whatever reason):
plugs or wires
distributor rotor
distributor module
PCV valve
Fuel filter
I'd appreciate any advice, I just can't figure out what is causing this. I know it's got a lot of miles so I just live with the situation but it's getting worse. No 1 plug keeps fouling (oil buildup) so I'm going to replace the valve seals soon. Thanks!
I've replaced (for whatever reason):
plugs or wires
distributor rotor
distributor module
PCV valve
Fuel filter
I'd appreciate any advice, I just can't figure out what is causing this. I know it's got a lot of miles so I just live with the situation but it's getting worse. No 1 plug keeps fouling (oil buildup) so I'm going to replace the valve seals soon. Thanks!