Hello, I have a Grand Cherokee Laredo, 2001, 3,1TD engine. I have a issue with my heating system: The Jeep is not heating enough, reads about 60 degrees C. I have changed the the thermostat, but the result is the same. I just wonder if somebody can give me a reasonable explanation what's causing that and how can I fix it. Thanks in advance.

It appears to be a known issue.

https://www.google.com/search?q=2008+Jeep+Grand+Cherokee+Laredo+V6%2C+JB+power+fuse+issues

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Question edited for clarity.
Question moved from Television and Video category!

80 foot pounds for flange bolts

https://www.google.com/search?q=2011+Grand+Cherokee+Laredo+rear+drive+shaft+torque

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are you on wrong forum, Grand cherokee is it?
the XJ jeep is not a ZJ jeep. which is it, the big GRAND ZJ?
what a great question, actually cars with EFI all have 3 filters...
sorry to shock you.

1: the fuel sock , below the pump , to catch loose golf balls. LOL.
dead bugs, etc.
2: the pump output line has a filter., all do, can be in tank (newer cars) or just outside (did you look first or post first) bingo!
3: then each injector has 10 micron size screens. the above keeps these clean, saving $120 for injector service and labor R&R.

and what engine, not posted engine size on engine questions
the fuel system matches ENGINE type, on all cars made.
4.0L engine ????

ive owned both a grand laredo and not grand laredo 1988 to 2010

if not grand see this XJ car.
called just a Cherokee here. 1993
http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service


the grand is called a ZJ
also on same page and both are LAREDO's

the book has a fuel chapter.
read that. for free.

RTM
read the manual yet?
car WJ
2000
chapter body
read
page 100
its all there to read.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

check water level in radiator- can be low enough for no heat but engine still not overheat

the 1st thing that needs to be done is have a mechanical oil pressure test gauge hooked up to confirm the actual reading, the electronic gauge many times is incorrect.

yes it will

More or less two hours. The process can view the Jeep ZJ Service and Repair Manual - Secc24 Heating and Air Conditioning

I hope help you. Good luck.

Back up a minute...Do you have spark from the coil wire? (juice from coil) If so, change or check rotor and cap (wires do not all go bad at same time so unless they are wet, likely at least good enough to start engine)

Check this link & scroll down to your engine. Click on picture to expand.

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528004328a