Question about 2003 Jeep Grand Cherokee

1 Answer

I have a 2003 Jeep Grand Cherokee laredo, 6 cylinder 4.0 that will not turn over, but cranks. The check gauges light and check engine light are both on. Using the key/odometer on/off I only get, "done." I bought a pocketscan obd2 but doesn't register codes or any other category. The gauges show zero oil pressure. It's our only car and I need to get it running asap, any help is greatly appreciated.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 6,982 Answers

You need to first determine if the problem is with spark or fuel system. Check for spark at plugs, same at coil. You can spray carb cleaner into the throttle body while cranking the engine and see if it starts. If it does, then the problem is in the fuel system.You can use a digital multi meter to do individual component tests as listed in haynes or chiltons manuals and to check voltages where necessary. Check all the fuses inside and outside as well as fuel and auto shut down relay. Most common failure is the crank position sensor, but if you replace it without testing likely it won't be that. When you turn the key, you should be able to hear the fuel pump running. Wish I could give you more but I don't have enough info and testing is far better than guessing!!
Good luck

Posted on Oct 03, 2009

Testimonial: "Thank you for your helpful advice!"

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I HAVE TO CHANGE OUT A CRANK SENSOR IN MY GRAND CHEROKEE.


Jeep Crank Sensor Replacement, P Codes P0351, P1391 ...

? 6:24
www.youtube.com/watch?v=7D0vUEDSwXo
May 12, 2013 - Uploaded by Robert DIY Replaced the crank sensor on this 2003 Jeep Grand Cherokee.... to replace my crankshaft position sensor on my 1998 grand cherokee laredo.

Jeep Crankshaft Position Sensor Replacement (CKP, CKPS ...

? 4:07
www.youtube.com/watch?v=1Ho5iAKQV00

Oct 27, 2013 - Uploaded by WeekendHandymen
hi , do you think if I replace crank sensor will solve the problem ,my jeep .... Where's the crankshaft located in 99 jeep grand Cherokee laredo .


Oct 24, 2015 | Cars & Trucks

2 Answers

Fireing order diagram


cylinder firing order is: is 1-5-3-6-2-4 .... In Jeep Grand Cherokee Laredo ...Happy motoring.

Sep 04, 2014 | 1996 Jeep Grand Cherokee

1 Answer

1999 jeep grand cherokee laredo v6 4x4 won't fire on all 6 cylinders just 4 why?


Plenty of causes. Plugs, valves. rings, numerous electronic/electrical faults. Diagnose vehicle and eliminate problems one by one.

Oct 30, 2012 | 1999 Jeep Grand Cherokee

1 Answer

WHILE DRIVING MY JEEP GRAND CHEROKEE LAREDO CHECK GAUGE LIGHT CAME ON TEMPORALY THAN WENT OFF. AGAIN CAME ON WHILE I WAS STOPING MY CAR BY TRAFIC LIGHT AND WHEN CAR EXCELRATING GOES OFF!?


run a self test. turn ignition key as follows.

off-on, off-on, off-on.
on is when the dash lights come on(not cranking) and off is one click back. the computer codes will flash out in pairs on check engine light( 5-5 being end of test) or will display on the digital odometer. write down codes and report back.

Nov 01, 2010 | 2001 Jeep Grand Cherokee

1 Answer

Need firing order for 1998 Jeep Cherokee gand


For the 1998 Jeep Grand Cherokee Laredo:
I do not know if you have the 4.0L In-Line 6-Cylinder, the 5.2L V8, or the 5.9L V8; however I have included ALL below:

For the 4.0L In-Line 6-Cylinder:
Firing Order:
1-5-3-6-2-4
Cylinders:
(back)
...6
...5
...4
...3
...2
...1
(front)

Distributor:
....(back)
.....5....3..(+)-screw
1.............6
(+).4....2

For the 5.2L V8: AND 5.9L V8:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.......(back).......
|..8..|.........|..7..|
|..6..|.........|..5..|
|..4..|.........|..3..|
|..2..|.........|..1..|
.......(front)
Distributor:
.....(back)
.......3
..4.........6

8.............5
..1.........7
.......2
......(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

May 28, 2010 | 1998 Jeep Grand Cherokee

2 Answers

What is the firing order for a grand cherokee laredo. I change the distributor for sgrand cherokee laredo jeep. I lined up tdc, had the rotor turned to number 1, but it is still missing.


You didn't post your engine size so please choose the apprpriate diagram:



148dbd9.gif

1989-98 2.5L Engine firing order: 1-3-4-2 Distributor rotation: Clockwise



cc5a81b.gif


2.8L Engine firing order: 1-2-3-4-5-6 Distributor rotation: Clockwise



427e129.gif

4.0L Engine firing order: 1-5-3-6-2-4 Distributor rotation: Clockwise



35fbd17.gif

5.2L and 5.9L Engine firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise

May 12, 2010 | 1996 Jeep Grand Cherokee

1 Answer

What kind of engine is on a 94 jeep cherokee laredo V6 4x4


THIS MODEL HAD NO V6 ENGINE, IT HAD A STRAIGHT 6 (4.0L) OR A 4 (2.5L) CYLINDER, THE GRAND CHEROKEE HAD A V8 (5.2L) AS AN OPTION AS WELL.

Apr 16, 2010 | 1994 Jeep Grand Cherokee

1 Answer

Where is the Oil Pressure Sending Unit 96 Jeep Grand Cherokee 4L


the sensor is located right above the oil filter, careful they crack very easily...but are really easy to replace...

Dec 03, 2008 | 1996 Jeep Grand Cherokee

Not finding what you are looking for?
2003 Jeep Grand Cherokee Logo

404 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75077 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7768 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...