Hey yal, new to the forum.
Need help diagnosing this rough idle.
So i got an 88 jeep Cherokee Auto tranny I6 4.0 ( my trail rig ) that i recently put a used motor in it. Unfortunately it sprung a fuel leak at the fuel rail and then it back fired, throwing a flame out of intake and ignited the gas Was a good 10 second fire. Only noticeable damage done was the wiring and vacuum lines. Had an extra wiring harness. As far as i know i got the vacuum lines hooked up correctly.
Got her cranked up today and she was running rough with a constant intake backfire along with exhaust back firing.. When i push pedal nothing happens.
This is what i have done so far. re stabbed dist, Found TDC on cy #1. Firing order is correct. Replaced TPS and the other sensor near it on the TB. New plugs (used wires). A picture old engine bay would help me track my vacuum lines Any other info would greatly be appreciated.
The motor was pulled from a friends jeep and sat in a shop for some months. I pulled valve cover off and oil pan inspected what i could. When she cranks there is no smoke from exhaust. Motor seems good.
Need help diagnosing this rough idle.
So i got an 88 jeep Cherokee Auto tranny I6 4.0 ( my trail rig ) that i recently put a used motor in it. Unfortunately it sprung a fuel leak at the fuel rail and then it back fired, throwing a flame out of intake and ignited the gas Was a good 10 second fire. Only noticeable damage done was the wiring and vacuum lines. Had an extra wiring harness. As far as i know i got the vacuum lines hooked up correctly.
Got her cranked up today and she was running rough with a constant intake backfire along with exhaust back firing.. When i push pedal nothing happens.
This is what i have done so far. re stabbed dist, Found TDC on cy #1. Firing order is correct. Replaced TPS and the other sensor near it on the TB. New plugs (used wires). A picture old engine bay would help me track my vacuum lines Any other info would greatly be appreciated.
The motor was pulled from a friends jeep and sat in a shop for some months. I pulled valve cover off and oil pan inspected what i could. When she cranks there is no smoke from exhaust. Motor seems good.