2000 Jeep Grand Cherokee Laredo In-line 6 cyl. 4.0L from North America - Comments

I too have a 2000 Jeep GC with overheating problems... It started this June with the water pump failing (101,000 miles) we had it replaced along with the thermostat.. no problems until Aug when the fan wouldn't turn on and the jeep overheated... Mechanic said that it was a wiring issue and fixed it no charge it worked well until two weeks ago and no fan again.. the Mechanic changed the relay and fan worked as it was designed but continued to have issues with the jeep running warmer that usual...didn't overheat but ran close to the red zone and then would just come back to normal... had the radiator "cleaned out" hoses changed.. NO loss of coolant, no coolant in oil or transmission fluids.. no loss of oil pressure.. still gets warmer than normal but dosen' overheat... not a problem when moving just in slow or stop and go traffic... any ideas...

2000 Jeep Grand Cherokee 4.0 straight 6 cyl... Bought with 40k on it, now has 132,000..Some of the same problems as everybody else.. Electric fan died, replaced it, they the relay died.. So I went to the junk yard and pulled a clutch fan off a junker, now it never overheats.. The water pump is set up for a fan, and I was told that early models had both on them..

Oil Pressure... went nuts for about 6 months, then went back to normal lol.. Its the sensor not the real oil pressure..

Rear brake line rotted out.. only 8 years old? never been in the salt water.

Only 2 brake jobs, I did them both, using premium quality aftermarket parts...

Electric door locks, make a horrendous noise.

Now there is a noise coming from the transfer case, when the truck is cold, sounds like gears clashing, then it goes away..

Just a fine piece of ka ka.. but it looks good!

2000 Jeep Grand Cherokee 4.0 straight in line 6 cylinder... Bought with 83k on it.. Some of the same problems as everybody else. Bought Jeep for $4,000 and drove home, but didn't make it. 24 miles down the road and the Electric Radiator fan broke and flung into the radiator, causing all fluid to gush out. $300 and new radiator and fan, made it home.

Took it to Jeep dealer for recall fan switch replacement and they also installed a heat shield between the injector rail and head.

Poop - we bought a key-less entry button and extra key, $200.

No overheating or low pressure on Oil. Changed the oil and filter with Synthetic Mobil 5-50w. Tried to get Oil Filter off without spilling oil in it but it poured out and onto starter. Starter is located right under filter. Yep, Jeep wouldn't start, so I sprayed a brake cleaner spray and then (WD 40) all over it, a lot, and it finally started. Yesterday the rains started and the dash lights began to blink a lot and then the (Brake and ABS) lights came on. Pulled over and put in park and back into drive and lights went off. Drove home OK. I felt that I may have had a short, so I found a crack in the tail light, removed it and found the taillight full of water. Cleaned all contacts and dried everything and glued the crack with water proof. Everything seems OK now. Will look at brake lines next.

One thing I haven't read here is the Head lights plastic protectors. Mine are very corroded or foggy looking. Some one told me to buy some rubbing compound and polish with a buffer. I will try this just before I sell it. I can't afford the cracked head and blown engine problem.

You know that everyone says "Get the 4.0 In-line 6 as it is the best engine Chrysler has made." Well its very similar to the statement, " You can't own property in Mexico". Both of these are bogus. The In Line 6 is not a good design and the Electric fan relay fails causing the engine to overheat, cracking the head between #3 and 4 cylinders, causing the oil pressure to drop to 0 at Idle and the coolant to burn into the cylinders and out the tail pipe. The other statement that you can't own property in Mexico is also bogus. In 1994 they changed their constitution allowing foreigners to own property. I bought 1/3 of an acre on the Sea of Cortez for $40k and am retiring there where you can live on $1000 a month for food, water, gas, electricity, insurances, taxes, everything. I love the jeep look and thought it would be good in (San Felipe Baja Mexico) but must sell it now. If you need any info, email giantdad@aol.com.

Hi, I have a 2000 Jeep Grand CHEROKEE. It has 185k on it and I have no problems with it!!!

I have read so many comments on the 2000 Jeep Grand Cherokee. All the issues I've read, I am having the exact same problems. The locks make a loud noise; the the two front doors don't lock, I have to lock them manually, and the passenger tail light keeps going out...

I have read many of these comments but do not see my problem. My 2001 GC's Low Coolant indicator keeps coming on but the coolant levels are full in the radiator and reservoir. I am NOT loosing coolant, the engine does not over heat, nor is there oil or transmission fluid in it. Everything is fine except that darn Low Coolant indicator keeps coming on! If the sensor is bad where is it located so that I can change it?

Any help appreciated!!!!!

Anyone else notice how all Jeep Grand Cherokee's back up lights don't work.

The six cylinder in line six "was" one of mopars or actually AMC's best designed engines, as were the 383, the 440, the 340 and the 318... problem was they were overbuilt and far too dependable... so Chrysler improved upon them! With wisdom like this, it is no wonder people are buying foreign cars and trucks.

The 4.0 liter in-line six is in my opinion, one of the finest engines ever built.

I have heard that this AMC's engines basic design dates back to old Nash engines from the late 20's or 30's.

Whether or not this is true - it is a fine engine.

As bulletproof as they get!

The 4.0 in-line six may be a mighty fine engine, but they definitely put out a bad batch with defective cylinder heads and have taken no responsibility for them. I'm limping mine along as long as I can, and I hate to lose it because it's been great in all other aspects, but it won't be long now before I have to put it out of its misery. It's too old now, in my opinion, to replace the entire engine because of the damage that was done by the cracked cylinder head. I don't think I'll ever trust Jeep or Chrysler again.

We purchased a 200 Jeep GCL the first of November, just made our first small payment last week, and 2 days ago it decided to die on the way to work!! Found out the entire engine has to be replaced!!! It has 108,000 miles on it, they said something about the anti-freeze leaking into the block. Our warranty covers most of it, thank god, but I do believe after being a fan of Jeeps for many years, and the owner of now #8 in my lifetime, that Chrysler really needs to take the bite for all of this. There is such a thing as a class action lawsuit, and 100 people are needed to get it started. Looks to me like we have well over that on this post alone!! E-mail me if anyone would like to pursue this any farther.

Zerostorm95@hotmail.com.

Bought my 2000 Grand Cherokee Laredo with the inline 6 cylinder, new in 2000.

Have replaced water pump, approx 75,000 miles, radiator and hoses, approx 85,000 miles.

Valve cover, and oil pan gaskets, 100,000 miles.

Fan replaced under warranty. Regularly serviced at dealer.

Now at 128,000 miles, and running strong. (Knock on wood).

Power door locks replaced, approx. 4. Expensive.

One rear axle bearing. 2 brake jobs.

I have a 2000 GCL six cylinder - heater stopped heating, air blows fine.

Replaced the thermostat; it now seems to be spraying a fine mist from T-stat housing.

Have had coolant loss issue for some time, but this has me perplexed. Have tightened and retightened the bolts; can't seem to get the leak stopped; any suggestions?

2000 Cherokee In-line 6 242 engine!!

I have had oil pressure problems with this car since 75 K miles. Ending up throwing a rod as a result of it.

Going forward I had a used engine with fewer miles installed.

Things went well for a while, then the over heating started.

Replaced the radiator, water pump, thermostat and flushed so many times I probably should have bought a drum of antifreeze.

Finally thought I got everything fixed, new tires and of course a front end alignment again. Then my wife says is rocking at the stop sign. Check the oil and find coolant in there. Replaced head gasket 2 times. Runs good when cold, but as soon as it warms up it misses on the #5 cylinder.

Took to dealer,, wow,, their first response after $125 of troubleshooting was I can't use autolite spark plugs. After a tongue lashing from me they agreed to troubleshoot computer system and all feedback circuits.

They found nothing! It was returned running worst then ever after warm up. Found that when it starts to run bad there is some liquid coming from tailpipe, not gas, probably coolant again. Removed head again, was going to replace with a used head assuming a crack but the used head looked in terrible shape. Now I inspected the head and found no cracks visible. So is it the head or the block?

Can anyone shed some light on it? What signs or places should I inspect to find if I am replacing a head or whole engine? Thanks for any help. (n3gh@arrl.net)

Man, I wish I would have seen this site one month ago. I bought a beautiful 2000 Grand Cherokee Laredo (143,000) and within two weeks the engine had the "click" noise of death! I loved driving the thing. Now I'm looking for a new engine... trying to make some lemonade!