6 votes
Accepted

Electronic stability control on 2017 Grand Cherokee

It sounds like a steering angle sensor issue. The ESP/ABS ecu uses the steering angle sensor to determine where you are pointing the steering wheel. It then looks at each wheel speed value, it can ...
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  • 2,742
5 votes
Accepted

Ball mount ground clearance

The height from the ground to the bottom of the ball will be determined by the trailer you're pulling, not the car. The height of the trailer is such that the trailers hitch is horizontal with the ...
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  • 8,612
4 votes

Battery drains by itself when vehicle is parked (parasitic draw)

Same problem, but another forum suggested that the key in their 98 GC can be removed one click past the OFF position, in the ACC on position. Sure enough, I checked mine and found the battery drain ...
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  • 41
4 votes

Battery drains by itself when vehicle is parked (parasitic draw)

Wow I can't believe the basics are totally not listed here. First of all, since you know its draining the battery, disconnect the battery, charge it, then check to see if it is still draining on its ...
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  • 41
4 votes
Accepted

Should I use a shorter accessory belt?

Looking at the routing it may work with a shorter belt. But it may not have enough tension to drive the water pump without slipping. Dorman may make an A/C delete pulley/bracket. Which would keep the ...
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  • 10.7k
3 votes

My Jeep is making a squeaky noise when I apply the brakes and when I drive slowly it makes a clunking noise

Going only from the information here, I'd say there were two issues going on. Firstly, I'd say that the brake job was done incorrectly/badly. A squeaky noise when you apply the brakes is often ...
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  • 8,612
3 votes

Battery drains by itself when vehicle is parked (parasitic draw)

I know this is an old forum, but I need to comment. I have a 1998 Jeep Grand Cherokee Laredo that I bought for my daughter to use. The battery was brand new when I got the Jeep, but soon after ...
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3 votes

I need help with my Jeep Grand Cherokee 1994

This good answer has a list of all Jeep OBDI codes, pulling out the relevant ones we have: 12 memory to controller has been cleared within 50-100 engine starts 27 injector control circuit does not ...
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  • 14.6k
3 votes

driving with no oil showing on dip stick

I doubt you want to hear this, but really, the responsibility is yours. You are the owner and maintainer of the vehicle. As the owner, you cannot expect the dealership or manufacturer of the vehicle ...
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3 votes

What do all these codes mean? 125331324255

The way to read the codes on your Jeep when they are flashing is, consider them blocked into two digit numbers. You'll get the first digit flashed, short pause, then the second digit. If there is more ...
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2 votes

Spontaneous flutter / roar sound coming from under hood?

It looks as though the Grand Cherokee has a clutch fan. If so, this could be locking up and causing the noise. When fully locked, it can make quite a racket as well as putting a drag on the engine.
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2 votes

Brakes not working after being parked up for 3 years on Jeep Grand Cherokee

Check the master cylinder fluid level. If it is low or empty you have a leak. If the reservoir is full the likely cause is a bad master cylinder. To find the leak fill the master cylinder and pump the ...
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  • 19.7k
2 votes

External regulator just installed and now there is a battery drain that kills my car

Certainly the issue would probably have to do with the last change made to the system. I'm sure this doesn't escape you. You will need to test for parasitic drain if you want to nail the issue down. ...
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  • 32.8k
2 votes

2002 Jeep Grand Cheerokee Laredo hesitate/jerking + multiple CEL codes

As Moab pointed out, your issues are very "generic", meaning there's a number of things that could be causing them. Here's what you do: When the check engine light comes on, it means the computer has ...
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  • 12.1k
2 votes

Battery drains by itself when vehicle is parked (parasitic draw)

I can say the easy way for you is to get a low amp tester. Remove the negative cable of your battery, connect the tester to the negative side of the battery and to the negative cable of vehicle. The ...
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  • 35
2 votes

2002 Jeep Grand Cheerokee Laredo hesitate/jerking + multiple CEL codes

Regarding the O2 sensor codes. Check fuse 16 in the under hood fuse box. It's likely to be blown. The only point all four sensors have in common is the fuse. If the fuse tests good I'd pull up the ...
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  • 10.7k
2 votes
Accepted

Is remote start and cluster connected to 8.4in radio?

If I remember correctly, the radio system in Jeeps are closely tied to the security system in the vehicle. It has something to do with the door chimes, air bags, and parts of the security (incl your ...
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  • 291
2 votes

I have heat 20% of the time

Cooling system problems suck to diagnose because you can't see inside. No heat can be caused by three things no heat, no flow, other. The no heat part is easy. If the engine is not hot then you ...
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  • 15.9k
2 votes

Car jerks left to right when braking

You will get this effect from warped front brake disks. Disks can become quickly warped by getting them hot from heavy braking then driving though water which cools them quickly. You will need to ...
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  • 20.9k
1 vote

Electronic stability control on 2017 Grand Cherokee

I can't be sure, but I can tell you from Subaru "tone wheel" experience that just a little bit of rust or debris can cause some really odd behavior. The sensor consists of a wound coil with a voltage ...
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  • 12.2k
1 vote

1998 Grand Cherokee 4WD wheel hop

Has a JEEP mechanic looked at it, rather than a shade-tree mechanic? (note: I'm more the latter than the former!) It sounds like you have torque-bind. Given that you have automatic 4WD, I'd lean ...
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  • 8,612
1 vote

318 V8 oil pressure problem

The pressure sensor does not control flow - it just "reads" the pressure to give you a value on the gauge. The overly dirty (or probably thin) oil may have caused the loss of pressure as the pressure ...
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  • 34.4k
1 vote

Replacement tires, can it blow my trans case, or anything else?

Normally, the center differential should cope with the difference in tire diameter. If you lock the center diff for on-road driving, you could get problems.
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  • 4,412
1 vote

I shorted out my flasher relay, what would have been damaged?

Every Most electrical circuits in the car should be protected by a fuse. There are commonly two fuse panels, one under the hood with some large fuses, and one somewhere in the cabin with some smaller ...
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  • 3,002
1 vote

I shorted out my flasher relay, what would have been damaged?

I would check the supply fuse for that circuit as a first step.
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  • 34.4k
1 vote

Duplicate OBD code - or reading it wrong?

The 21 issues has been observed by others in the past on a couple different jeep engines running OBD1. As the numbers are flashed in increasing values it is extremely unlikely it is a second 21 with ...
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  • 1,518
1 vote

2002 Jeep Grand Cheerokee Laredo hesitate/jerking + multiple CEL codes

Here's what your trouble codes mean: P0135: O2 sensor heater circuit (bank 1, sensor 1) P0141: O2 sensor heater circuit (bank 1, sensor 2) P0155: O2 sensor heater circuit (bank 2, sensor 1) P0161: O2 ...
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  • 12.1k
1 vote

How to fix B223D error code for Jeep Grand Cherokee with engine 3.7L of year 2005

Uncle google just told me that an airbag related sensor (most probably the one that detects if somebody is sitting on the passenger seat) needs calibration. I only can recommend you to take the car ...
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  • 7,828
1 vote

2006 Jeep Grand Cherokee transmission issue

Sensor, Bad Ground, PCM reprogramming recall? McDonald's battery & alternator check. Most of this can't be done by a regular mechanic. Drive it, drive it, drive it right up to a dealer shop tech ...
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  • 144
1 vote

94 Jeep Grand Cherokee Laredo

Might be something with the idle sensor. It can be a clogged catalytic converter. The problem can also be caused by a clogged or stuck EGR valve. I have seen both clogged catalytic converter and ...
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  • 440

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