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Old 09-21-2015, 03:49 PM
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Old 12-04-2015, 11:30 AM
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Default Oil pressure issues

I have a 99 Cherokee limited that is having oil pump issues,,while driving the pressure will shoot almost up to 80,, but then when I stop or am at a light the pressure will drop to almost 0 is it my oil pump about to de out on me or is my gauge going bad,,,where is a good spot on the 4.7 motor for a oil pressure gauge??
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Old 12-04-2015, 11:35 AM
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Originally Posted by Cherokeeirish
I have a 99 Cherokee limited that is having oil pump issues,,while driving the pressure will shoot almost up to 80,, but then when I stop or am at a light the pressure will drop to almost 0 is it my oil pump about to de out on me or is my gauge going bad,,,where is a good spot on the 4.7 motor for a oil pressure gauge??
is it a grand Cherokee?
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Old 12-04-2015, 11:44 AM
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Originally Posted by BrawnyDog
Thanks bruv, you too Cane. I flushed the system a few months ago and replaced the sending unit. I should have replaced the thermostat too.
So this needs to be dealership item only?

Just ordered one with a gasket from the dealership. It's $20something and the gasket is $6something. Ac/delcos are fewer than $10.
Dealership thermostats are more reliable and better built.
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Old 12-04-2015, 04:43 PM
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Originally Posted by XJwonders
is it a grand Cherokee?
Yes, ifound out it was the oilpressure relay switch
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Old 12-04-2015, 06:43 PM
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Originally Posted by ITTs_Cole
Driving the Jeep, wouldn't go above 2k rpm. Wide open throttle Rpms/speed didnt change. Try downshifting/neutral (auto) still wont go above 2k. Stop, power cycle jeep works fine. Thoughts?
Originally Posted by sycoglitch
TPS comes to mind. I'll wait until someone else chimes in
Got an OBD-II scanner or an ELM-327 gadget to see what the sensors are doing? Something's being weird. MAY set a pending code. Bad TPS will show up pretty easily.
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Old 12-04-2015, 09:18 PM
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Originally Posted by salad
Got an OBD-II scanner or an ELM-327 gadget to see what the sensors are doing? Something's being weird. MAY set a pending code. Bad TPS will show up pretty easily.
OBDII .....93......
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Old 12-04-2015, 09:27 PM
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I recently found an 88 XJ 5spd 4.0 with about 200k on it that I can get for super cheap, $450. It's got a 231, clean body and interior, and has a factory tire carrier also, two problems
1. It's a two door which I'm not particularly fond of but with the rest of its stats I don't care
2. This is the big problem, the guy states that he cannot keep it running and has replaced the module 5 times because it keeps burning them up (I guess he was hoping he bought 4 bad ones?). What could be causing this and is it fairly easy to fix?
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Old 12-04-2015, 09:27 PM
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Originally Posted by ITTs_Cole

OBDII .....93......
Lol yea it's an obd1.
Count the blinks
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Old 12-04-2015, 09:50 PM
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Originally Posted by ITTs_Cole
OBDII .....93......
Oh. Sorry. Call a plumber?

Originally Posted by PNWjeeper
I recently found an 88 XJ 5spd 4.0 with about 200k on it that I can get for super cheap, $450. It's got a 231, clean body and interior, and has a factory tire carrier also
Giggity

Originally Posted by PNWjeeper
1. It's a two door which I'm not particularly fond of but with the rest of its stats I don't care


Originally Posted by PNWjeeper
2. This is the big problem, the guy states that he cannot keep it running and has replaced the module 5 times because it keeps burning them up (I guess he was hoping he bought 4 bad ones?). What could be causing this and is it fairly easy to fix?
"The Module"?

And dude... You've got Cruiser's Renix Tips in your signature. You're complaining about random electrical issues with a new-to-you Renix... lol
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Old 12-04-2015, 11:20 PM
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Originally Posted by salad
"The Module"? And dude... You've got Cruiser's Renix Tips in your signature. You're complaining about random electrical issues with a new-to-you Renix... lol
That's what I was thinking when he said module. As for cruisers tips I wasn't sure if they would apply here. I suppose might as well get it preform the necessary refreshing etc. and see if that works.
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Old 12-05-2015, 07:04 AM
  #52196  
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Originally Posted by BrawnyDog
My temp gauge shows this after it should be warm:


What could be causing this?
My first thought was a faulty sensor, but then I thought stuck thermostat.
I call on the powers of the Jeep community.

Edit: heat was working. But I couldn't tell if it was as hot as should be.
My 90' does the same thing. I've changed the thermostat twice, the sending unit twice, checked the wiring, and even changed the gauge.

It still "heats up" to about 130, and there she sits. The only time it's gone higher is once when I left the cap off by mistake after changing the coolant, and it overheated when it all leaked out.
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Old 12-05-2015, 07:32 AM
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If I order a bacon egg and cheese in Canada will they give me ham or bacon
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Old 12-05-2015, 09:24 AM
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Originally Posted by crabmushrooms5
If I order a bacon egg and cheese in Canada will they give me ham or bacon
http://askville.amazon.com/question-...uestId=2662756
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Old 12-05-2015, 11:03 AM
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This is a friend's grand Cherokee, does this look like coolant in oil to you guys?
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Old 12-05-2015, 11:08 AM
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Originally Posted by FruitSnacks
This is a friend's grand Cherokee, does this look like coolant in oil to you guys?
4.7 v8. Junk *** engine
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