95 jimmy 4.3 knocking and spuddering

[BlazerLT]

fuel pressure.

cap and rotor

coil

Also, what plugs are you using?

[punkrockdario]

autolite platinum. they were like 3 somthing a pop.
my first time buying plat. plugs

[BlazerLT]

And the rest of the things I asked?

Also, did you gap the plugs properly?

[blazes9395]

Did you check the general condition of the engine, compression test, vaccum test, fuel pressure test, or leak-down test? This would be the first thing before shot-gunning parts into it.

[BlazerLT]

Originally Posted by blazes9395

Did you check the general condition of the engine, compression test, vaccum test, fuel pressure test, or leak-down test? This would be the first thing before shot-gunning parts into it.

Due a tuneup is not considered a bad thing to do in any situation.

[blazes9395]

True, tune up is not a bad thing, I agree.

[punkrockdario]

ok, i took my jimmy to a shop, and they told me the reason it idles and has poorer low rpm power is because the tps is bad. so i'll report back when i change it.

thanks to all, you're guys help is why i'm where i am, BETTER.