need some assistance

I went to fire up the jeep this morning, and it backfired. No big deal except that it sounded like a 16 gauge going off, and scared the crap out of my girlfriend..... then i noticed that the idle was rough, and my number 4 injector is leaking pretty bad, and i have what sounds like a vacuum leak. It was dark out, but i couldnt find any vacuum lines detached...any ideas? Could the leaky injector be the cause of the vacuum leak sound? I drove 15 miles to work, and the jeep ran perfect.

Its an 88 with 4.0 and auto trans

DO NOT drive it anymore until you fix the injector leak!

As for the leak sound, use a piece of hose, one end to your ear, the other to various points in the engine bay.

I found the leak, the fitting on the side of the throttle body had popped out. Fixed that, now its time to fix the injector

I figured the back fire may have blown something out.

Talyn said:

DO NOT drive it anymore until you fix the injector leak!

As for the leak sound, use a piece of hose, one end to your ear, the other to various points in the engine bay.

Click to expand...

i think Jp did a article on putting in 07 ford f150 injectors, and also mentioned(and pictured) in the article was the remains of a project mj that caught fire due to the injector leaking on the hot manifolds