backfiring...
Thread Starter
Newbie
Joined: Jun 2013
Posts: 22
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Model: Cherokee
backfiring...
I have a 87 cherokee 6 cyl. Driving it home yesterday...it started backfiring. I started it today...idles fine but hesitates and backfires when depressing the gas pedal. Fuel pump and filter has been changed as two weeks ago...any suggestion
Seasoned Member
Joined: Jun 2012
Posts: 427
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From: Ronceverte WV
Year: 1998
Model: Cherokee
Engine: 4.0 I6
TPS?
Maybe your O2 sensor?
Did you have a look at your plugs, wires, cap and rotory button? But I'm assuming you have the 4.0 instead of that crappy GM 6 cylinder given your year and all lol....
Maybe your O2 sensor?
Did you have a look at your plugs, wires, cap and rotory button? But I'm assuming you have the 4.0 instead of that crappy GM 6 cylinder given your year and all lol....
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Member
Joined: Nov 2010
Posts: 182
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From: Charlotte
Year: 2000
Model: Cherokee
Engine: 4.slow
i would agree. check for big intake leak, check the fuel pressure if you have the capabilities. bad fuel pump, clogged fuel filter, bad or really dirty injectors...basically anything that could starve fuel, or too much air
how many miles? possible timing chain has stretched? maybe a dirty IAC?
im just throwing ideas out
how many miles? possible timing chain has stretched? maybe a dirty IAC?
im just throwing ideas out