Question about 1991 Jeep Wrangler

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Instructions for replacement of 1991 Jeep Wrangler radiator.

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Posted on Jan 02, 2017

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SOURCE: Instructions for replacing 1997 Jeep Wrangler 6cyl

Its an easy job! Disconnect the battery first! That's very importand! Then disconnect the wiring pack from the ECU. Some models are equipt with snap-systems, other with a screw-system to remove the wiring connector from the ECU. If done, there are three or four screws that hold the ECU in place with the body. Remove the screws and you hold the ECU in your hands. To buy a new or rebuilt ECU, reffer to the numbers shown on the label at your Wranglers ECU in combination with the V.I.N. To connect the new ECU with the wiring pack, be careful with the connector! You need to put him in the right position to connect with the ECU. Do it slow and make sure the connector fits to all points. Otherwise you'll bake some contacts inside the connector.

Posted on Oct 24, 2009

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1 Answer

Free belt diagrams


http://serpentinebelthq.com/1991-jeep-wrangler-yj-4-0l-serpentine-belt-diagram/ her is a link for you to a diagram. I hope this helps

Jul 08, 2014 | 1991 Jeep Wrangler

1 Answer

91 jeep wrangler bleed slave cylinder


You need to do this with a vacuum bleeder like those made by MITYVAC, they cost about $30 and are available at most better auto parts stores and some retailers like Walmart (not sure on that). The tool comes with full instructions and adapters for most clutch bleeder ports.

Jul 13, 2012 | 1991 Jeep Wrangler

1 Answer

New head gasket new t stat(180) new radiator ,,,gets hot after 20 minutes


Take it back to where you got the work done.Radiator is proberly blocked.If not.Bad job done.Hope this helps

May 26, 2011 | 1991 Jeep Wrangler

1 Answer

How much does it caust for hoses in a jeep that lead to the tranny?


Not Available ,on a vehicle that old

The tubing should be good,just replace the rubber
hose part,by the radiator cooler.

Other issues?

Dec 06, 2010 | 1991 Jeep Wrangler

1 Answer

1991 jeep wrangler trouble starting and stalling


It could be a fuel filter clogged up or it could be a fuel pump going bad. Does the jeep start back up after it stalls? Is there any more symptoms?

Jan 27, 2010 | 1991 Jeep Wrangler

1 Answer

I have a 1991 jeep wrangler.Getting motor oil in the air filter.What could cause this to happen? No PCV valve to replace.


Yes there is a PCV valve, you just have to look for it.
Engine may be over full on oil.

Jan 04, 2010 | 1991 Jeep Wrangler

1 Answer

1991 jeep wrangler: alternator overcharging


It sounds as the voltage regulator which is built into the back of the alternator has stuck. Occaisionally this even happens on new ones. Would suggest taking the alternator back as it shoud be under warranty.

Jul 06, 2009 | 1991 Jeep Wrangler

1 Answer

How do I replace the interior LH door handle 97 Jeep Wrangler?


you will need a t-20 or t-15 torx bit driver to remove 2 screws holding the handle this is all that holds them on, on once you have a replacement handle it is easier to remove 2 lower screws on the door panel and unsnap the door panel to loosen it this will allow space making it easier to reinstall new handle just slide each end into the slot and reinsert 2 screws to not fully tighten until door panel is snapped back in. the panel is held on with clips and can be released using plastic pry tool around door panel edges.

Nov 22, 2008 | 1991 Jeep Wrangler

1 Answer

Soft top installation


not sure if your top is different, but this may help.

http://www.bestop.com/index.php?s=3

Sep 06, 2008 | 1991 Jeep Wrangler

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