89 renix 4.0 NEED HELP
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
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Joined: Dec 2013
Posts: 39
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From: lucasville ohio
Year: 1989
Model: Wagoneer
Engine: 4.0
ive checked and cleaned all the grounds twice and i added an extra one from the intake manifold to the firewall and i have unplugged and checked all of the electrical connections im going to do some more of them but i ordered a digital multimeter from ebay and im waiting for it to come in the mail
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
ive checked and cleaned all the grounds twice and i added an extra one from the intake manifold to the firewall and i have unplugged and checked all of the electrical connections im going to do some more of them but i ordered a digital multimeter from ebay and im waiting for it to come in the mail
Need to do the Sensor Ground Test at a bare minimum. .
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Junior Member
Joined: Dec 2013
Posts: 39
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From: lucasville ohio
Year: 1989
Model: Wagoneer
Engine: 4.0
ok with the jeep sitting idling if i unplug any 1 of the injectors it doesnt bog it down or start missing or anything it stays running exactly the same i havent tried unplugging more than 1 yet
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Joined: Aug 2011
Posts: 10,489
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From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
You might pull the vacuum line from the Fuel pressure regulator and see if it looks wet inside. If the diaphragm had a hole I guess it could suck fuel in that way. Easy enough to check/rule out anyway!
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