mj sound like a diesel

[STERLING STINGER]

recently ive noticed that my truck is sounding like a diesel....

i tried diffrent gas, it seemed to work a little, but only for a day or two.

starts after 2nd turn of key

sometimes stalls out while idling

still idles high and low ....seems like when its wet out it does it more???

had timing checked, it was good....

they said it was reading a little below 0 whatever that means

 

92 mj 4.0

 

any help would be appreciated!

Thanks guys

Paul

[Eagle]

Worse when wet out? Check your plug wires. As they get old, internal resistance increases while the insulation may break down. Get the plug wires wet (or even damp, such as condensation on cold wires on a cool, damp evening) and if you pop the hood with the engine running you may see a light shopw you'll never forget.

[HOrnbrod]

Did you check/change the O2 sensor and do all the other checks we mentioned in your "stalling out" thread?

[88 Beast]

Check the coil too. I fought a miss and stall at low idle longer than I'd like to admit. Mine got worse after a rain or car wash. Turned out the coil was arcing to the metal case around it.

[johnjeep]

Check the spark plugs too!! Mine did that about a year ago and it just needed new plugs. Something so small makes a huge difference!!

[STERLING STINGER]

Did you check/change the O2 sensor and do all the other checks we mentioned in your "stalling out" thread?

Yes.

the oxygen sensor is good as well as all the wires.

not sure what a throttle body sensor is though.

I just changed my plugs, wires, cap, and rotor.

still sounds diesel-ish

it sounds like its coming from the bottom so I'm gonna check the exhaust

maybe theres a little hole somewhere or something

[STERLING STINGER]

Still sounds crappy but a little better :fs1:

[STERLING STINGER]

bumpity bump bump bump

[87Chief]

Check/tighten all your intake/exhaust manifold bolts.

[STERLING STINGER]

Ok thanks ill do it tomorrow.

Can anyone tell me the tps location?

Thanks

Paul

[itsjust me]

mine did that when i got it. everything was gumed up and full of carbine. the ports in my valve cover where completely plugged. something to think about.