Top 20 1997 Jeep Wrangler - Page 6 Questions & Answers

Hi there:

That code means that sensor is reading high volttage. That doesn't mean the sensor is bad. It could be, or it could have shorted wiring between it and the pCM or the most likely is that the engine is running rich and the sensor is reading correctly.

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It still sounds like an alternator issue when the vehicle is running you should be showing 14.4 volts going into the battery try a load on the system while checking this means turn everything on the blower the lights 4-ways the A/C everything then see if the charging system can keep up

change the spark plugs and wires

make sure the bleeder nipples are closed tightly. also check to make sure the bolt that connects the line to the caliper is seated on correctly and tight. also keep an eye on your brake fluid level. If there's no leaks anywhere you should almost never need to ad fluid.

you have a bad crank position sensor . it is located on the top left side of the transmission

Chanig out fuel filter < also may be low oil psi.

Have a mechanical test gauge hooked up to verify the oil pressure is within factory specs at idle, if it is replace the sending unit on the engine, if not you have a defective oil pump or worn engine bearings.

Under the driver side of dash, or in a relay box next to the battery, or on the opposite side of the engine compartment on the fender rail.

Your best bet is to take it to an Auto Zone, Pep Boys, or other reputable parts house. They'll test it for free. I know ... you can't get it there. Put a charger on the battery (disconnect it from the car). Get the battery fully charged, then take it there. A fully charged battery should run the car for about 10-20 miles depending on traffic, etc. By the way the voltage regulator is inside the computer, just behind the battery. If it's that, it's going to be expensive.

try new spark parts yet, called a tuneup. ? on this old, wires and spark plugs. i pay no attention to the CEL, i scan them all you do know that the CEL does not come on for all fails. and in canada, lots more. missing. scan it , and do so when it messes up in WIN. my guess,no full tuneup for last decade. right>?

try bleeding the brakes

My problem bucking/backfiring after 20min cool down was due to bad O2 exhaust sensor. Also discovered same during certain driving conditions was due to battery sliding into computer wiring harness disrupting sensor input/output signals. Cured problem by placing 1" spacer on rear battery clamp to push battery forward away from computer wiring harness. This cured the problem from ever reoccurring.

Assuming you have the 4.0 six look on the fuel rail towards the front of the engine and find a small black cap that looks like a valve stem cap on a tire. Remove this cap and place a pressure gauge on the line. You should have about 40 PSI. If the fuel pump is running as you say then yo u should have pressure. There is also a micro screen on the fuel pump in the fuel tank which can get plugged up. But, usually the vehicle will start and starve for fuel when accelerating. If you don't have the required pressure delivery at the fuel rail then the problem is probably with the fuel pump located in the fuel tank. This is just a starting point for you. Hope this steers you in the right direction.

YOU MUST REPLACE THE THROTTLE BODY, THE SPRING IS NOT SOLD SEPERATLY.

Some of it (well most of it) just needs something flat to kind of pry off but there are a few screws (some kind of hidden) that need to be removed before prying. Below are some instructions that I hope help. Hope it does.

fuse

related problem with disrupted sensor input/output caused by battery sliding into computer wiring harness. cured by placing 1" spacer on rear clamp pushing battery away from wiring harness and computer.

DID YOU REMOVE AIRBAG FUSE OR DISCONNECT NEGATIVE BATTERY CABLE TO DISCHARGE AIRBAG CAPACITOR DISCHARGE BEFORE YOU REPLACE IGNITION SWITCH KEYLOCK CYLINDER. CHECK MAKE SURE YOU INSTALLED AIRBAG FUSE OR IF YOU DID DISCONNECT NEGATIVE BATTERY CABLE.WHEN YOU RECONNECT NEGATIVE BATTERY CABLE.WITH IGNITION SWITCH ON POSITION FOR MINUTE THE AIRBAG LIGHT SHOULD TURN OFF.IF NOT HAVE GARAGE OR DEALERSHIP CODE SCAN AIRBAGS SYSTEM SEE WHAT CAUSE SRS AIRBAG LIGHT TO FLASH ON COULD HAVE FAULT IN SYSTEM..

Heater blowing cold air,indicates towards low or no coolant or the coolant flow is getting obstructed or the heater core is clogged or hot to cold moving flap/ door is stuck in cold mode. There are many possibilities, that needs to be checked. Click the link below for step by step details:--- http://technoanswers.blogspot.com/2011/10/heater-blows-only-cold-air.html ---------- This should help.Thanks.Helpmech.

flasher module needs to be replaced and also check hazard fuse. both fuses are used for the flasher to work..