2003 Jeep Grand Cherokee - Answered Questions & Fixed issues

Question edited for clarity and typo. Question move to sub category. In the link https://www.google.com/search?q=2003+Jeep+Grand+Cherokee+4.0+vacuum+hose+diagram&rlz=1C1QJDB_enCA643CA644&sxsrf=ALiCzsZ01aJvRIbi-ItrVsybfwqLpB7vKg:1655133759887&tbm=isch&source=iu&ictx=1&vet=1&fir=eg_i7iEBTar1SM%252ClG5C3sW0d95l2M%252C_%253B-bjmL_jOjrBo6M%252C4lpnf8J4SyQNeM%252C_%253B64qm6wsgl9DQkM%252CS5zQY7FPk324zM%252C_%253BELxwE7lH2gEC6M%252COxCz7cMgSt8AAM%252C_%253BR15O7od4tRU63M%252CE8SUqj6tnjom-M%252C_%253BlyubqA7kzr7N2M%252CLM7e5oqPbFMV9M%252C_%253BKNdRqVnwcm5T4M%252C8Ef4coWN-p52JM%252C_&usg=AI4_-kQdqPng4uV8i4x4kn9wI7rvhwjuvg&sa=X&ved=2ahUKEwibisHe3ar4AhVRFc0KHQokARsQ9QF6BAgDEAE&biw=1920&bih=937&dpr=1 ..

From our Pro Technician. Anonymous Mar 08, 2022 Look for broken wires inside the flex boot , black rubber boot from the body of the vehicle to divers door. That year vehicle happens a lot after you open the door a million times. Find a good local auto-electrician.

Question edited for clarity and some sentences. Question moved to Jeep sub category. The way to fix that is to go to a local auto-electrician and they will just replace the contacts in the junction box by crimping a new one to the wire, and locking it back into the junction box. You might even be able to do it yourself by bending the contacts in the socket a little with a thin blade screwdriver.

• If there are no brake lights period the check the stop switch (brake light switch)
• This is attached to the upper part of the brake pedal itself. Should be a little wire off of it. When that goes bad the brake lights will not work at all.
• Please note that the fuse for "brakes" is ABS only and has no bearing on the brake lights themselves working.

Regards, Tony

It can be the issue with weak battery or faulty battery or if battery is ok,then its faulty starter causing the issue.

From start to end troubleshooting these problem i suggest you to click the link below and follow its procedure:-----

What to Do When Car Turns Over But Won't Start?

http://technoanswers.blogspot.com/2012/11/what-to-do-when-car-turns-over-but-wont.html

----------- Car starting issues?

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

------------ Car Starting Problems

http://whoisbyme.blogspot.in/2012/06/car-starting-problems.html

-------- 1991 Toyota Trecel: Engine Starts fine but dies when gets Warm?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

---------- 1994 Toyota Pickup: Starts fine but dies in few seconds?

http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

--------- 1999 Chrysler Cirrus: 8 IGN Fuel Starter Fuse Blows?

http://whatisbyme.blogspot.in/2012/06/1999-chrysler-cirrus-8-ign-fuel-starter.html

----------- 2001 Toyota Camry: No start After replacing Battery?

http://whatisbyme.blogspot.in/2012/05/2001-toyota-camry-no-start-after.html

---------- 1989 Toyota Pickup Truck: Turns over but not start? http://whatisbyme.blogspot.in/2012/05/1989-toyota-pickup-truck-turns-over-but.html

-------------- Car dead and will not Start? http://whatisbyme.blogspot.in/2012/05/car-dead-and-will-not-start.html

-------- 1995 Lexus LS400: Running Hot?

http://whatisbyme.blogspot.in/2012/05/1995-lexus-ls400-running-hot.html

---------- 2001 Toyota Prius will not start? http://whatisbyme.blogspot.in/2012/05/2001-toyota-prius-will-not-start.html

--------- 1996 Jeep Grand Cherokee: Engine will not start? http://repairhelpcenter.blogspot.in/2012/06/1996-jeep-grand-cherokee-engine-will.html ------------- Mitsubishi will not start

http://www.howtorepairguide.com

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These will help.

Thanks.

What kind of Jeep (model,engine size).
Is it turning over?
Is the battery dead?
I need alot more information.

Look into the turn signal switch itself. Have the wiring checked.

Read this post about a lot of electrical problems. It will give you an idea on what to look for. https://www.cnet.com/forums/discussions/the-famous-jeep-grand-cherokee-electrical-problem-272172/5/ When it does not crank, check to see if voltage is getting to the starter. If it is, hit the starter. If it starts , replace it.

When you say the jeep will not turn over, you mean that it will not crank? If that is so then you may have a bad starter or coolant may have filled a cylinder with water. Pull out the spark plugs and see if it will crank over, check to see if water comes out of the heads when cranking. If it still does not turn over, check the starter.

Try a fuel pump relay. It could be getting hot and loosing connection then resets when restarting.

Some fixya user told me a website reliable-store it is very good.. I used it to repair my shredder it had some spark issue which wasn't easily fixed. you can go there and try

Unfortunately, the relay may be located inside the transmission. Try utube if you have not already. If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10

Have them check your fuel filter, may be time to change- please also google the jeep to see if this is common!? Good Luck Stevo!!

code p 0122 causes are wiring short to ground , TP/APP sensor --ECM or also wiring open/ short to ground / short to positive TP/APP---ECm so check the wiring and connections code p 0107 is map and /or BARO sensor --low input===causes ---wiring short to ground ---MAP sensor ---BARO sensor--ECM

remove door panel and check to see if glass is attached to bar that raises the window up and down as they do come loose I would use a good glue check with the window repair for some so you get the right stuff

indicates a bad ground /loose ground or dirty battery terminals

Power steering Belt or pump pulley. Could be that turning left puts more stress on your system then turning right and that's why you only hear it while turning left.

problem ground for the dash units

Yes they are.

run the fault codes servo/ solenoid. or sensor problems