Anonymous Posted on Jul 02, 2014

1997 jeep wrangler wont start runs rough sometimes

wrang97 Jun 12, 2015

had similar problem due to bad exhaust manifold oxygen sensor (replaced), and battery kept sliding into computer wiring harness disrupting signals to computer. placed 1" spacer on rear battery clamp to push battery forward away from computer.
wrang97 Jun 12, 2015

3 problems I tracked down were: (1) mechanic was removing wiring from automatic shutdown relay (ASD) within fuse box in engine compartment (jeep wouldn't start); (2) bucking and backfiring after 20 min cool down was due to bad front oxygen sensor; and (3) battery was sliding into computer wiring harness disrupting sensor input/output signals, I placed a 1" spacer on back battery clamp to push battery forward and problem solved.

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wrang97

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Posted on Jul 01, 2015

wrang97

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Also 3 problems I tracked down were: (1) mechanic was removing wiring from automatic shutdown relay (ASD) within fuse box in engine compartment (jeep wouldn't start); (2) bucking and backfiring after 20 min cool down was due to bad front oxygen sensor; and (3) battery was sliding into computer wiring harness disrupting sensor input/output signals, I placed a 1" spacer on back battery clamp to push battery forward and problem solved.

Andrew Smart

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Posted on Apr 03, 2015

Andrew Smart

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Fuel system or ECU/sensor issue

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Anonymous

475 Answers
Posted on Oct 07, 2008

SOURCE: 1999 Jeep wrangler runs rough

Check the gas, could be water in it or drive the car with a fuel pressure tester connected to it and watch to see if you lose pressure.
Normal pressure while driving is about 30 to 40 psi

Anonymous

74 Answers
Posted on Nov 18, 2008

SOURCE: 1997 Jeep wrangler

Clock spring mech is prob bad, first easy check is remove airbag 2 8mm bolt from back side of wheel make sure wires are still connected if they are good the clock spring mech is bad you can use a steering wheel puller to remove wheel and clock spring mech just snaps out and has 2 plugs on it, I have 2 if you need one.

Anonymous

16 Answers
Posted on Jan 10, 2009

SOURCE: Jeep wrangler Fuse box

You have two locations for the fuse box. One is either under the hood or behind the glove box. I would pull apart the glove box and take a look.

Anonymous

1 Answer
Posted on Apr 25, 2009

SOURCE: 1997 jeep wrangler wont start

I had same problem. Ended up having to replace ignition switch, then gauges and jeep started right up

Anonymous

169 Answers
Posted on Aug 29, 2009

SOURCE: 91 Jeep wrangler New everything idles rough, no Power then dies

you check for miss how is compression

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I would suspect the ignition switch (electrical) is the problem due to the age of your Jeep. Sometimes when you turn the ignition key if it's really bad, you will feel a bit of roughness indicating the switch is breaking apart inside.

Turn the key from off to on repeatedly and see if you notice if the fuel & volt gauges work each time.

If you find it's not the switch, you'll need to check your wiring ground locations to make sure they are not rusted and are making good electrical contact. Specifically, a ground wire to the dash panel.

If all grounds are in excellent condition then you may need to trace the wiring from the battery to the ign. switch to the gauges to see if you can find any damaged loose or pinched wiring. A good 12 volt test light should help you to isolate and find this issue, start at the battery and work your way through:)

FLEX your wiring a bit and make sure it's still flexible. Sometimes your wiring can become so corroded over time that current barely makes it to the destination.

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