Car Repair Help by Professional Mechanics
Automobile
/ Jeep / Wrangler
Jeep Repair Questions and Answers

Question: 1999 Jeep Wrangler mileage:
120,000. Here's a bizarre one. When I drive my Jeep on
long trips, after about 120 miles, the oil pressure
gauge starts acting erratically. The Jeep runs fine but
the oil pressure gauge pulsates randomly between Zero
and Forty. It only does this on the highway and after
about 2 hours of driving. All other gauges seem OK it's
just the oil pressure. This gauge drops causes the
"check gauges" light to come on.
Answer: You either have a faulty
gauge in the dash or internal engine oil pressure
problems. To check this, connect a temporary mechanical
gauge to the engine. Drive the car on the highway as you
did when the problem occurred. Watch the mechanical
gauge and if it does not fluctuate, then you know you
have a faulty gauge or sending unit. If it does
fluctuate, you have internal engine oil pressure
problems.
Question: 2001 Jeep Wrangler
mileage: 75,000. I read about the "knock sensor" that you
have alluded to in answers to other questions. Does my
model have one of these? I am experiencing extreme
knocking when I use anything but premium gas! This has
been going on for a long time now, but has really only
hit home recently with the rise in gas prices. Would the
knock sensor be the only thing that could explain this
problem, because I have asked my mechanic before about
it and they didn't mention this?
Answer: Your car may not be equipped
with a knock sensor. Check the EGR valve. If it is not
functioning properly, it can cause engine pinging.
Question:
2002 Jeep Wrangler mileage: 83,000. My jeep
wrangler (02) was idling then shut down, it will not
start. The engine turns over but will not catch. I
am guessing it could be the idle air sensor.
Answer:
You more than likely need a crank angle sensor.
Question:
1999 Jeep Wrangler mileage: 90,000. My front right
brake leaks brake fluid, and my brakes will not work.
What should I do?
Answer:
Locate the source of the brake fluid leak and repair.
If the brake pads have gotten wet with brake fluid, they
should be replaced. Check the other three corners
of the car’s brakes to make sure they are in good shape.
Finally, yet importantly, bleed the air out of the
system.
Question:
1998 Wrangler mileage: 85,000. My seat belts are
sticking in the retractor mechanism. They stay
out, not retracting against my chest when I drive.
Can I fix something like this? Is it a matter of
opening retractor and lubricating?
Answer:
The seatbelt retractors are not serviceable. The
entire assembly must be replaced.
Question:
2001 Jeep Wrangler mileage: 95,000. The
tachometer on my Jeep shows between 2-3 (I don't know
what it means exactly) and is running too high (fast)
during idle speed.
Answer:
Your car is equipped with a computer controlled engine
management system. An independent auto service
center can scan your computer for fault or error codes.
The information should pinpoint the malfunctioning
components.
Question: I have a 1997 Jeep
Wrangler
mileage: 95,000 automatic transmission,
that gets between 18-20 miles per gallon. Is there any
way to improve the mileage?
Answer: Your Jeep is equipped
with a computer controlled engine management system. The
fuel mixture is constantly monitored and adjusted for
optimum mileage and performance. The only way to improve
mileage is change driving habits i.e., slow starts,
constant speeds etc. Keeping your Jeep in top running
condition also helps.
Automobile
/ Jeep / Wrangler
Look up more Jeep Wrangler Questions in our Car Repair forum section.
Try looking up your problem in our
Auto Repair topics section
Got a Car Repair Question?
We
will answer it for free.
Related Subjects
GET AN ONLINE
CAR REPAIR
MANUAL. Get instant access to your vehicles drive belt
routing, wiring diagrams, trouble code information, updates and
factory bulletins.
|