Jeep sputtering/backfiring/when warm.
#31
Junior Member
Hi guys, I need to know, where is a resistor to control fuel pump speed after engine start? There should be any resistor to reduce pump speed, but I don't know where and how it looks like.
#32
Junior Member
#33
Junior Member
Hi all, I want to tell you, that my Jeep is OK now. It was really fuel pump. I ordered new one (AIRTEX E7001 - nothing else was here to buy, is it good, or not?) installed and car now runs very good.
#34
Seasoned Member
Join Date: Jun 2012
Location: Corpus Christi, TX
Posts: 270
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Year: 2001
Model: Cherokee
Engine: 4.0
#36
mine is doing similar.
starts fine if its been sitting for a long time. once it is warm and you shut it off it will spit sputter die choke. if you shut it off & try to restart immediatly it won't. the longer you wait to restart the less time it sputters. When it is doing it there is a loud sucking sound from airbox that goes away when problem does. once its gone through it's fit (30-45 sec) runs like a champ.
here is what I have done so far.
new plugs, wires, cap, rotor, pcv valve. have unplugged both O2 sensors to see if it was them. cleaned the idle air control. I also did the injector swap
any help would be great.
starts fine if its been sitting for a long time. once it is warm and you shut it off it will spit sputter die choke. if you shut it off & try to restart immediatly it won't. the longer you wait to restart the less time it sputters. When it is doing it there is a loud sucking sound from airbox that goes away when problem does. once its gone through it's fit (30-45 sec) runs like a champ.
here is what I have done so far.
new plugs, wires, cap, rotor, pcv valve. have unplugged both O2 sensors to see if it was them. cleaned the idle air control. I also did the injector swap
any help would be great.
Last edited by nish; 09-15-2014 at 08:47 AM.
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