Last post on May 20, 2013 at 1:06 PM
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Jeep Grand Cherokee, Jeep Cherokee, SUV
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#5086 of 5134 Re: water pump issues 1995 JGC Laredo 4.0 [kmfdm667]
Jul 22, 2012 (9:38 am)
It is not unusual for a water pump to fail in three years but usually the tell tale leak is from the bearing weep hole, not the bottom of the housing. Coolant can travel funny ways. I would suspect its the gasket, if its coming from the bottom of the housing. I replaced the water pump on my 2004 JGC last month for $50. The new (not rebuilt) pump has a lifetime warranty(Advanced Auto Parts), you can buy the gasket separately for less than $10, or goo it up with permatex and reinstall. If you had it replaced at a garage and have your receipt, see what the warranty terms are. My guess is they replaced it with a rebuilt pump which has a one or two year warranty. Good luck, but you are smart to repair it before it fails and overheats and ruins your engine.
#5088 of 5134 Cooling System Leak ??
Jul 30, 2012 (11:20 am)
97 Jeep Grand Cherokee 4.ol I6: I gave my kid my old jeep to use at college. He is home for summer and I am using it. I worked on it last summer. Replaced water pump, brakes, etc. and all was OK. I am using it this week and it is consuming about a gallon of antifreeze per day. Nothing looks wet. Not a drop of antifreeze on the floor. Very unusual. I fixed a dozen cooling leaks. Engine runs OK. Nothing conspicuous about the exhaust. If head gasket issue, shouldn't I see or feel something. I have had it since 2000 so I know when it's driving OK. I haven't pressure tested it yet. Radiator or radiator cap? Any input welcome. How should I start troubleshooting?
#5089 of 5134 Jeep Grand Cherokee 2003 CRD
Jul 31, 2012 (11:38 am)
Hi! My Jeep Grand Cherokee 2003 CRD Diesel Engine No: 1J8G8E8A24Y103891has a hard start for the past 3 weeks. I have realized that when it starts, the diesel mixes with the air. There are bubbles flowing through the pipes. I have cleaned the tank. I have bought new diesel filter. I have replaced most of the seals of the pump in front of the engine. We have been looking through the pipe from the tank to the diesel filter. I cannot see any leakage. . When my car is running, it is smooth and has no problem. The only issue is starting. When we start the engine and it is stationary for a while, the diesel starts flowing backwards. The pipes become empty. PLEASE I need some help. If you have any suggestions what next to try, please write back, Thank you!! Samuel Kayuni, Malawi in Africa.
#5090 of 5134 Re: Cooling System Leak ?? [rwengr]
Jul 31, 2012 (7:08 pm)
I's it throwing any codes? We never think our kids are gonna not have some fun with it. 100+ mph runs, a total lack of care, and has 10k on the oil he never checks....
Take the damn thing to the shop before it burns up.
#5091 of 5134 Re: 2004 Jeep GCL temp gauge high when heat is on [lijeepowner1]
Aug 19, 2012 (7:23 pm)
lijeepowner1 did you ever figure out what was wrong with your jeep? I think mine is having similar issues to yours.
#5093 of 5134 Code Po705
Aug 27, 2012 (8:15 am)
I have code PO705 i know it is Neutral Safety Switch problem. Anybody know where is switch located in Jeep Cherokee 2007 . Or maybe can tel me more about this code. Thank you.
Aug 28, 2012 (12:50 pm)
I checked the Service Manual for a failure code P0705 but could not find that code listed. I found a code for P0850-PARK/NEUTRAL SWITCH PERFORMANCE.
Theory of Operation
The Park Neutral switch rationality test is enabled only for vehicles equipped with a 4/5 speed automatic transmission. This diagnostic checks if the park/neutral switch is incorrectly stuck in the neutral position during driving conditions by comparing Vehicle Speed, Engine Speed, Throttle Position, and Pressure Ratio to the fail thresholds and by looking at the state of the Park/Neutral Switch. The stuck in drive condition is not explicitly checked as the starter relay does not energize and therefore render the vehicle inoperable.
This code will set if the PCM detects an incorrect Park/Neutral switch state for a given mode of vehicle operation. Two trip fault. Three good trips to turn off the MIL.
TRS (T41) SENSE (P/N SENSE) CIRCUIT OPEN
TRS (T41) SENSE (P/N SENSE) CIRCUIT SHORTED TO GROUND
TRANSMISSION RANGE SENSOR
POWERTRAIN CONTROL MODULE (PCM)
The transmission solenoid/TRS assembly is internal to the transmission and mounted on the valve body assembly. The solenoid/TRS assembly also contains the Transmission Range Sensor (TRS) and five pressure switches that feed information to the TCM.
Hope this helps.
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