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

I have a 2000 Jeep Cherokee sport. 6 Cyl, 4.0L.

A year ago I was losing coolant out the bottom and had no idea where from. After a couple weeks the drop of coolant turned into a cup of coolant. I took it to the dealer and it was the freeze plugs rusted through. $1200 later the problem was fixed. They did a great job here in Mesa, AZ. I hope that helps someone.

OK now I am drawn to the boards because I am having what I think is an issue?

76,000 miles on vehicle. Gently driven and maintained. Engine cold and idling there is 42+PSI. After it warms drops to around 20+ PSI. Accelerate and pressure is back up to over 40 PSI. It was not this way before an oil change a week ago. So today I bought 10w-40 High Mileage Synthetic and threw in a quart of Slick Fifty as well. Plus I put in a new High Mileage FRAM oil filter. This filter is about 1/2 to 3/4 of an inch larger than what the local quick change gas station had in there? So I am not sure if they had a suitable sub or just the wrong filter? Also the oil seemed a bit dark for only being a week or so old? Well the oil pressure seems to be dropping a bit after it is warmed up but not down to 20+ PSI it is now around 35 PSI. The HAYES manual says this is all within limits and is fine? What say you???

I own a 2000 JGC with 220,000 miles. This vehicle is hands down the best truck I have had. That being said, I do have most of the same problems everyone has been listing.

1. Coolant leaking into the oil system causing a nasty buildup

2. Oil pressure gauge reads 0 when warm and idle

3. Driver's door lock bad

4. Tail light problems now and again.

I bought this truck with 180,000 for $1000, I've been driving it for 3 years, it just works good.

Really, the only problem I see is the coolant leaking into the oil, which I am assuming clogged the sending unit tube for the gauge. I bought this because my last JC 4.0 had like 260,000 miles and I know these motors are wicked durable.

It's sad to see this thread, I never imagined there would be this many unhappy Jeep customers.

Another unhappy 2k JGC owner... 148k on this car and all of the exact same problems as stated by all of these unhappy owners.

SHAME ON CHRYSLER...LET'S BAND TOGETHER! FILE A COMPLAINT @

http://www-odi.nhtsa.dot.gov/ivoq/index.cfm

Hello everyone,

I have a 2000 JGC Laredo with the 4.0 I6.

I recently have been having a problem with low idle. I start the truck up, and as the engine gets warm, the idle starts to drop. It eventually gets around 500 rpm and is rough, as anything would be around 500. It then sputters and dies. If I have the AC on, it keeps the truck running, but not sure how long that will last.

Any suggestions?

Write to d.a.romney@gmail.com

Thanks.

I own a 2000 Jeep GCL with 108 miles. I am having some of the same problems listed by others.

The specific problem I am having now is the vehicle overheats! No coolant loss. I have changed the thermostat twice in the last 7 days with no luck. What I have noticed is the top radiator hose is ROCK hard as it begins to get into the overheating zone. It seems like there is a blockage in the thermostat housing. I was told that it needs to be bled for an air pocket. I have removed the temp sensor on the thermostat housing and flushed it out. Still no luck; still overheating. Any suggestions?

Thanks.

Wow! I bought my 2000 Jeep Grand Cherokee about a year ago, and 3 months later had to replace the engine. The back driver's side door lock is out, and right now it's parked in my garage while I look for a new transmission to stick in it. Won't shift out of 2nd gear. I thought that mine had just not been well maintained by the previous owner.

2000 JGC bought it with 36000 and had regular maintenance performed. Now got 120,000 and am losing coolant, and oil pressure at idle. Replaced oil pump, no help. Told that cam bearing spun. Good luck to anybody who bought this year of Jeep.

I am reading about the problems that many of you are having and have discovered possible remedies to my problem. I have a 2000 GCL with 115,000 miles. Replaced water pump and thermostat at 90,000. Replaced thermostat again at 110,000 after overheating occurred. It is now overheating when idling. I am going to test the fuse and relay and possibly the fan motor. I hope its just a fuse but I couldn't be that lucky. Will let you know how successful I am.

I have read a lot of postings about the overheating for the Jeep Grand Cherokee. My wife's 2002 did the same thing. Check the fan; her's was not turning on. The dealer wanted 4-7 hundred to fix it. I fixed it for 35 dollars by replacing the fan relay that is under the passenger side head light. Just use a Dremel tool to cut the top of the bumper cover away to access the relay (that's what the dealer will do and charge 700 to do it 15 minutes).

I have a 2001 Jeep Cherokee and have had problems keeping it cool, so I replaced the clutch fan with a electric fan and SPAL fan controller with no luck getting it to work, so I just use the over-ride switch to keep the electric fan on at all times. I installed a 180 thermostat and the temp still climbs to 210, and the secondary fan kicks on.

I too have been losing coolant slowly to nowhere, and after pulling a trailer, the oil pressure dropped and the check gauges light came on. I was checking on a new oil pump, but with all these entries, it seems like I have a whole lot more problems.

I love the Cherokee and don't want to sell it, but at what cost? This morning the lifters were ticking loudly and the oil pressure was at 40psi, so I am afraid of the results. New (Old) motor please! If Jeep has a head flawed design, what do you buy to replace it, a old head? Will it work with the newer intake and DIS system?