Question about 1997 Jeep Grand Cherokee

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I HAVE 1997 JEEP GRAND CHEROKEE LAREDO 4.0 LITERS HAVE TWO CODES PO351 AND PO320. I INSTALLED NEW CRANK POSITION SENSOR AND HAS THE SAME PROBLEM ENGINE RUNS FINE ALSO AFTER SOME MILES ENGINE DIE AND WE HAVE TO WAIT 30 MINUTES AND ENGINE RUNS AGAIN

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After it stalls, turn the key back on and listen for the fuel pump in the tank. If you don't hear it it's likely it's bad. (bad ones bind when hot and usually show no code).
Otherwise check the wiring continuity for the cps and check the signal from the pickup in the distributor. (check all the way to the computer itself. Of course, check all the relays and make sure they are good (most can be interchanged with each other except for ac relay)

Posted on Apr 08, 2011

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Posted on Jan 02, 2017

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2001 jeep grand Cherokee Laredo l6 4.o...found out it needed a ckp sensor and a asd relay, now put them in last week/ now I got 2 codes


code p 0351 refers to ignition coil A primary/secondary---circuit malfunction===causes --wiring---ignition coil---ECM
code p 1391 refers to intermittent loss of CMP or CKP
intermittent loss could mean broken wires , bad harness connections problem cam shaft position sensor (CMP) problem CKP or incorrect adjustment pf the sir gap for the sensors to the rotors

Mar 06, 2017 | Jeep Cars & Trucks

1 Answer

My 1997 Jeep Grand Cherokee Laredo front wheel drive my car is got a rough idle keeps backfiring and will not get up to speed it keeps jerking


run the fault codes and check for problem cam/crank position sensors or sensor wires and connections

Aug 01, 2016 | Jeep Cars & Trucks

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

Dies while driving


had issue with my 1997, bad computer, twice(4.0 liter grand cherokee laredo) also with a 1995 cherokee, same motor, crank angle sensors go at 80k-100k miles.

Nov 12, 2013 | 1996 Jeep Grand Cherokee

1 Answer

Are a 1993 4.0 liter high output 2 wheel drive Jeep Grand Cherokee countries have the same block as a 1990 Jeep Grand Cherokee Laredo 4 wheel drive it also has the 4.0 liter engine but it is not the high...


the first grand cherokee laredo was in 1992 . it was all jeep sports back then, the blocks are all the same .you will need to use some of the sensors from the old motor, the distributor and oil sending unit and temp sensor. will be no problem. if I can put a ford ranger motor in a mercury sable your swap is easier

Dec 05, 2012 | Cars & Trucks

1 Answer

96 jeep cherokee 4.0 has no spark po320 shows could the cam sensor cause it to have no spark


Cam sensor, crank sensor, bad coil, all could give no spark. Check all fuses and relays.... wiring connections as well. 320 is a crank sensor code.

Aug 25, 2010 | 1996 Jeep Grand Cherokee

1 Answer

1995 Jeep Grand Cherokee Laredo - not getting a spark at the coil


assuming its a 4.0 liter straight 6
the crank sensors go bad and the wire on them frequently get melted to the rear of the #6 exaust tube right were it attaches to cylinder head {the melted wire problem ussually happens after work done in the area of it] if its melted pull it off and see if it will start then tape it up or replace.
you could look up how to check it but they are cheap and easy to install and a new one never hurt nothing.

Mar 23, 2010 | 1997 Jeep Grand Cherokee

1 Answer

I have a '97 Jeep Grand Cherokee Laredo 4.0 liter that won't idle


Check your throtle postition sensor. It monitors what postion the throtle is at and sends that info to the ecm. It will go bad and cause that problem.

Feb 09, 2010 | 1997 Jeep Grand Cherokee

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