Stumble

[pokeyYJ]

I am having trouble fixing the stumble that our 83 wagoneer has.

Heres the specs, 360 V-8 with a motorcraft two barrel, auto tranny, electronic distributor. I replaced the accelerator pump, and that didn't fix it, I think that the timing is o.k. but I am not 100% sure. The stumble happens after you start going and about 1/4 throttle. It feels like it looses all power until you pump the pedal and then it goes again.

Anyone have any ideas?

 

[Moon]

my 87 wag dose that too.. EFI baby..... well some day

 

[spencurai]

check your vacuum advance on your distributor. make sure the hoses are fresh and make sure the the advance is functional with a vacuum pump.

 

[rustybronco]

If it only does it at 1/4 throttle, I'm willing to bet electrical. New cap and rotor, plugs, wires, and check the timing and advance.

 

[spencurai]

Originally posted by rustybronco
If it only does it at 1/4 throttle, I'm willing to bet electrical. New cap and rotor, plugs, wires, and check the timing and advance.

the funk in the cap is always the culprit for my zuk.....check that electrical....its probably the easiest part.

 

[pokeyYJ]

Originally posted by spencurai
check your vacuum advance on your distributor. make sure the hoses are fresh and make sure the the advance is functional with a vacuum pump.

it is electronic ignition that doesn't have a vacuum advance, but thanks for the input.

I was also thinking that a vacuum leak was the culprit, but it just doesn't feel like that. I am still going to check everything, but damn there are a TON of vacuum lines under the hood.

I will also check the cap and rotor but it looks new to me!

 

[Hickey]

Pokey, whenever you buy a used rig, you ALWAYS do a full tune up. Cap, plugs, wires and shiny chrome air cleaner. Wires could definitely be the culprit, tha's exaclty what happened with my moms car, she would stop for a stop sign, and it would stumble as soon as she started to go again.

 

[pokeyYJ]

Originally posted by Jeremy
shiny chrome air cleaner.

Oh yeah! I forgot that part! I actually fixed it for the most part, but I noticed, now that the motor has some punch to it, that the motor mounts are SHOT! The whole motor lifts like 5 inches! YEEEEE HAAAAWWW!

 

[Hickey]

oh yeah, and to add to that list


New tree airfreshener
and motor mounts

 

[pokeyYJ]

Originally posted by Jeremy
oh yeah, and to add to that list


New tree airfreshener

Done and Done! Got the three pack!
Had to splurge and got the fuzzy dice also!
And the flaming skull stickers

 

[Hickey]

ricer exhaust tip?

 

[demon jeep]

Stop putting beer in the fuil tank

 

[pokeyYJ]

Originally posted by Jeremy
ricer exhaust tip?

DANG! I knew that I forgot something! I guess that next time I go down to Autozone I will have to pick one up, maybe a body kit and some neon ground effects. Oh, oh and one of those 5 stage aluminum fins that I can rivit to the back!

 

[pokeyYJ]

Originally posted by demon jeep
Stop putting beer in the fuel tank

Wait, what is wrong with putting beer in the gas? I thought that since some drag racers ran alcohol, that I could too.

 

[N-Smooth]

you should just drive it off a cliff... okay okay i have no way to add anything intelligent to this post so i thought i would say something stupid. sorry

-nate

 

[pokeyYJ]

We got the stumble fixed, had the carb rebuilt and for some reason it just didn't like running with dirt in the float and cloging the jets?