I too have a 2003 Grand Laredo and my check engine light just came on today out of the blue. It runs fine, although I have noticed a slight miss every now and again like it has a clogged/misfiring injector. Most likely this is the cause of the check engine light.
As for braking IT SUCKS!!! I have just under 30k on it and have been through 2 sets of tires and now I have warped brake rotors. the ranny has started to shift really hard and not when it should. The rear window seal leaks when I wash it, or if it rains hard. I hhave also developed a weird squeak noice in the front end when I go over speed bumps, or and sort of dip. it sounds like it could be one of the control arm bushings, but it will not do it for a while and then comes back usually after having been in 4 wheel drive. who knows. I love Jeeps I have a 90 YJ and I have always been a Chrysler fan, dad works for Dodge. But this thin is the biggest POS!!! I am trading it in and getting me a Ram 2500 I think.
I have a 2003 Overland. I first had pulsating brakes at 5000 miles and the salesman at the dealer tried to play it off as the Wranger Tires that came with it. Dealer finally resurfaced the rotors at 10,000 miles. Around 20,000 miles same thing happened and now at a little over 30,000 the brakes are pulsating again. I haven't found any TSB Bulletins out about 2003 but I did see some for Calipers for earlier models. Currently the Truck is in the dealership so I will see what happens.
So far the warranty work on the Jeep includes:
-Replaced seal on Front Differential at 1000 miles as it was installed wrong
-Replaced plugs and coils at 1000 miles as defective
-New Purge Solenoid bracket as a ticking noise was coming from engine bay. Salesman at Dealer said "It's because of the high output engine"
-New Bushings on Front Swaybars and on Rear suspension as a TSB bulletin was issued and the suspension was squeaking
-Now on third issue of Brakes pulsating, no tsb yet.
I own a 2003 Grand Cherokee Laredo with the 4.0l engine. Fuel economy is very poor at 12 miles per gallon in the city and 16 miles per gallon on the highway. The engine has produced a loud 'ticking' sound upon start up since new and two different dealers have told me this is normal. I have had problems with the front and rear rotors warping, so I replaced the third set at 21000 miles with drilled and slotted rotors ($$$) and have had no problems since. A Jeep dealer recently rebuilt the transmission at 32000 miles to cure a 'clunking' sound when shifting into reverse, but the sound is still there. This vehicle is amazing in the snow and it looks great, but there are some common issues that plague Grand Cherokees and I would not buy one again.
I too have a 2003 Grand. I want to like this car, but have a tough time doing so. 23,000 miles and the 3rd set of pads and second front rotors. Now have to replace the electric fan switch as it stopped working and the car overheats. Amazingly, you have to remove the bumper cover and headlight assembly to get to it. $200. plus. 6 cylinder, 4.0 litre engine seems to "tick" and CD player overheats. Water was leaking into the passenger compartment front and seemed to be where the A/C drain goes through the firewall. At least that is what I was told. It was fixed.
I have a 2003 grand Cherokee Laredo, automatic transmission, v6, 4.0L.
The problems I've experienced are as follows.
- The transmission had problems. I apologize for not knowing the exact details, but basically, at one point, I want to say around 30 thousand miles, the check engine light came on and the RPM sky-rocketed, and I wasn't accelerating fast at all. I was actually accelerating, so it wasn't switching to neutral. The problem was fixed at the dealership and covered only by an extended warranty my Father purchased with the vehicle to begin with.
- Inside the jeep, the air conditioner. Sometimes the light for the AC goes off, and hot air blows. Sometimes this happens when I start the car, sometimes it happens in the middle of driving while it's blowing cold air just fine. The only way to fix it was to shut the fans and AC off for about 30 seconds. Usually when I turn it back on, it's fine. I took it to the dealership more than twice, and they wouldn't touch it unless they see the problem occur. Of course, it didn't while they look at it, that's not how luck works. Anyway, I've searched the Internet far and wide and still haven't found any information on this. If you know what it could be, how to find out, or if it's happened to you, please, please, please email me at FenixIgnition@gmail.com. Thanks for reading.
While I'm at it, the hydraulics on the hood failed me and gave me a migraine while adding water to the windshield washer reservoir. I doubt that's a common problem though, and its easily fixed by replacing them.
I have a 2003 GC with the 4.7/Quadra Drive combo. At 54k miles, the hood hydraulics failed, and I'm hoping to have them replaced under the extended warranty.
Seems like I have a problem with the OBD system as well. I keep getting the MIL indicator throwing back a "Loose Gas Cap" code even though the gas cap is tight.
Also, any comments on the 4-Tire Tire Pressure Monitor? When it's cold I get a "Tire Sensor Bad/Missing" Error message.
I too have a Grand Cherokee, 2003. I last used the A.C. several weeks ago and it worked perfectly. Now a warm spell hit and I turned it on yesterday but it would not blow cold air. I called the dealership and asked if this was a common problem. They said "not that we know of". It actually seems to just be out of freon. Is that possible so soon? Any suggestions?
I bought a used 2003 Jeep Grand Cherokee Laredo in October 2006. Everything was fine on the test drives (a few of them). I really like it. After I bought it the Check Engine light started coming on periodically, and then would go out after a few days. It went all winter long without coming on at all. Now that it's warming up again, it comes on almost everyday. I noticed there is a lack of power when this happens and also the cruise control doesn't work, like there may be a vacuum leak or something. It's starting to spit and sputter from pulling out from stops now. The gas mileage is horrible, and the dealership tells me the check engine light is very picky and it would be a waste of money to try to fix. I have also noticed a "clicking" sound when it warms up and is in idle, almost like it is lacking oil or something, but once again they tell me it's normal. For the 4 wheel drive, I think it's great. As of reliability and arising problems... I wouldn't feel comfortable recommending this vehicle to anyone, especially with the price of gas anymore.