Stumbling 1987 K5

[ds350]

My Blazer has started to stumble when on the road. It feels like it could be a electical or fuel problem. I have replaced the sparkplugs, dist & cap, filter, etc within the last 5k miles. I was actually thinking it could be the fuel filter, or the fuel pressure regulator. Any advice would be greatly appreciated.

Thanks! Danny

 

[coopertwpk]

Its most likely your wires ,thats ussually my problem .

88k5 silverado w4"lift soon to have <font color=orange>d44 and corp14ff</font color=orange> with 4.56s

 

[wi86blazer]

Replace the fuel filter if you haven't done that yet. If it starts harder than normal, stumbles while accelerating, but otherwise runs well - it's the fuel filter. My 89 K5 was running like that, changed the fuel filter and that solved everything.

 

[ds350]

I ended up changing both, and that fixed the problem.

Thanks for the help!