Oil peresure gauge not working
CF Veteran
Joined: Nov 2010
Posts: 5,840
Likes: 117
From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
Always post year/engine when you start a thread.
Could be the oil pressure sending unit (above oil filter) the gauge itself in your dash, or the wiring.
But most likely is the sending unit. As it is a common failure and not that expensive, I'd consider starting with that. I buy MOPAR for that sensor. Best for reliability/accuracy/mating with your factory gauge.
Could be the oil pressure sending unit (above oil filter) the gauge itself in your dash, or the wiring.
But most likely is the sending unit. As it is a common failure and not that expensive, I'd consider starting with that. I buy MOPAR for that sensor. Best for reliability/accuracy/mating with your factory gauge.
Thread Starter
Seasoned Member
Joined: Oct 2013
Posts: 287
Likes: 0
Always post year/engine when you start a thread. Could be the oil pressure sending unit (above oil filter) the gauge itself in your dash, or the wiring. But most likely is the sending unit. As it is a common failure and not that expensive, I'd consider starting with that. I buy MOPAR for that sensor. Best for reliability/accuracy/mating with your factory gauge.
Renix 4.0
CF Veteran
Joined: Jan 2012
Posts: 3,170
Likes: 312
From: Australia
Year: 1997 (RHD)
Model: Cherokee (XJ)
Engine: 4.0 ltr
So when was day one for you? I hope you had at least sóme pressure all that time you were staring at a dead gauge...
I'd verify with a mechanical gauge to have an idea where your pressure is at the moment since you have no idea how good or bad it actually is.
And then, like TJ suggested, check out a new pressure sending unit if you indeed have decent pressure.
I'd verify with a mechanical gauge to have an idea where your pressure is at the moment since you have no idea how good or bad it actually is.
And then, like TJ suggested, check out a new pressure sending unit if you indeed have decent pressure.
Thread Starter
Seasoned Member
Joined: Oct 2013
Posts: 287
Likes: 0
So when was day one for you? I hope you had at least sóme pressure all that time you were staring at a dead gauge... I'd verify with a mechanical gauge to have an idea where your pressure is at the moment since you have no idea how good or bad it actually is. And then, like TJ suggested, check out a new pressure sending unit if you indeed have decent pressure.
If there's no oil pressure then what does that mean?
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Id say if you've been driving this long you gotta have pressure or motor woulda blown by now ! You know where oil filters at ?
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors