Question about 1999 Jeep Grand Cherokee

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1999 jeep grandcherokee

Jurking motion, motor stops running code shows up po320

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  • Master
  • 1,511 Answers

Means Junk the Car

Posted on May 09, 2014

5 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

soc21610k
  • 215 Answers

SOURCE: my 1999 jeep grandcherokee power windows are not

Check the fuses for both of those accessories. The A/C compressor usually has a fuse/relay under the hood as well.

Posted on Jul 08, 2009

SOURCE: 98 jeep grandcherokee code PO138,

P0138 - O2 Sensor Circuit High Voltage Bank 1 Sensor 2

The rear heated oxygen sensor (or sensor 2), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Even if switching characteristics of the heated oxygen sensor 1 are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal from the heated oxygen sensor 2. This sensor is made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. Under normal conditions the heated oxygen sensor 2 is not used for engine control operation.

Causes:
- Harness or connectors (The sensor circuit is open or shorted)
- Rear heated oxygen sensor (Bank 1) may be faulty

Solutions:
Replacing the O2 Sensor 2 usually takes care of the problem


P0141 - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2

Causes:
- Harness or connectors (The sensor circuit is open or shorted)
- Rear heated oxygen sensor (Bank 1) may be faulty

Solutions:
Replacing the O2 Sensor 2 usually takes care of the problem


P0463 - Fuel Level Sensor Circuit High Input

The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the ECM or PCM, It consists of two parts, one is mechanical float and the other side is variable resistor. Fuel level sensor output voltage changes depending on the movement of the fuel mechanical float.

Causes:
- Fuel level sensor circuit harness or connectors is open or shorted
- Fuel level sensor may be faulty

Solutions:
Replaced fuel level sensor.

Posted on Feb 02, 2011

Ironfist109
  • 3018 Answers

SOURCE: what does this codes mean?

  • Code 15 - Is a defective speed sensor or the power feed to it has been interrupted or a wire that connects to the ECM could be old and need replacing. This will require some diagnosing with a multi meter. It will take some time but is necessary. The Speed Sensor for a 2 wheel drive is located at the rear of the transmission on the tailshaft. On a 4 wheel drive it's located on the back of the transfer case.

  • Code 33 - You have a bad wire going to the AC clutch. Possible AC clutch relay issue.
Regards, Tony

Posted on May 03, 2011

jharvey572
  • 447 Answers

SOURCE: i unplugged my battery on

have you checked the fuses /relays/wireing sometimes when you disconect and reconedt a battery you can get a power surge

Posted on Aug 03, 2011

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I have a grandcherokee 1999 n i change the ignition switch n now it doesn't stay on no more then 5 sec.what should i do


if you changed the ignition you have the key and switch programed into the computer because the 5 second run is a security item.

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I have 1999 jeep grandCherokee Laredo. about a month ago my turn signal. stop working, and now the brake lights are working, but the parking brake lights work. please help


IF YOUR BULBS ARE GOOD CK THE CIRCUIT BOARD ON REAR LIGHTS. THEY ARE VERY BAD ABOUT GETTING WATER IN THEM AND RUSTING OUT. THEY ARE AVAIALABLE FROM YOUR LOCAL PARTS HOUSE OR ON LINE (DORMAN)

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I unplugged my battery on my 1999 jeep grandcherokee and now my power windows do not work


have you checked the fuses /relays/wireing sometimes when you disconect and reconedt a battery you can get a power surge

Aug 03, 2011 | Jeep Grand Cherokee Cars & Trucks

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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...


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)

Apr 08, 2011 | 1997 Jeep Grand Cherokee

2 Answers

My 1993 buick park ave stalls when stopped at red lights


When was last "healthy" tune up? Plugs, wires, ALL filters including FUEL filter? I'd start there, and run a good fuel system cleaner w/next tank full of fuel. In winter, with fluctuating temps, condensation (water) forms in fuel tank and spark plugs don't burn fuel/water efficiently causing stumbling and premature wear on your plugs.

Feb 27, 2011 | 1999 Buick Park Avenue

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

How do i locate a crank sensor and the code comes up as po320. thank you


Yes the po320 code is no signal at the crank.It is located on the transmission bellhousing.Its on the lefthand side of the housing in the top quarter.At the back of the motor.After the problem has been fixed,do not disconnect the battery to clear the code.Get the codes cleared before starting the motor or the comp may set a trouble code for that.A scan tool is needed from a dealer or good shop.I hope this helps

Sep 25, 2009 | 1998 Jeep Cherokee

2 Answers

My 1999 jeep grandcherokee power windows are not


REMOVE MASTER SWITCH UNPLUG IT 12V TEST LIGHT YOU SHOULD HAVE TWO HOT WIRES . IF THERES POWER THE PROBLEM IS IN THE WIRING HARNESS FROM THE DOOR TO THE THE VEHICLE. THE WIRES TEND TO BREAK AT THIS POINT. YOU DID CHECK FUSES AND WINDOW RELAY

Jul 08, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Winshield wipers not working, due to snow removal


Ok, If wipers were frozen to windshield at one point, it is possible to either blow fuse or burn out motor. The motors used on Jeeps are pathetic... sometimes unable to run on a dry windshield unless water is sprayed on it! Same goes for wiper transmission... If you moved it by hand, you can bend or otherwise damage it, but that is less frequent! Check fuse, relay and motor for power (in that order) and you will likely find the problem.if you haven't already!!!

Dec 20, 2008 | 1998 Jeep Grand Cherokee

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