Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Simon J on April 26, 2011, 08:52:33 PM

Title: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Simon J on April 26, 2011, 08:52:33 PM: The oil pressure light on my 2.8 CRD takes about three seconds to go out when starting from cold. Is this normal as I would have expected it to go out pretty much a soon as the engine starts.
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Dutch on April 26, 2011, 09:11:21 PM: Si,

Could take a few secs for the 'puter to process the data.

It goes out.......that's the important bit of your post.

If it doesn't ......"Houston....we've got a problem" :003:
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Dave69 on April 27, 2011, 06:50:23 PM: more like Housten prepare for a big bill
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: isle of man on April 27, 2011, 06:56:44 PM: Quote from: Simon J on April 26, 2011, 08:52:33 PM
The oil pressure light on my 2.8 CRD takes about three seconds to go out when starting from cold. Is this normal as I would have expected it to go out pretty much a soon as the engine starts.

Change the oil and filter (use genuine filter) and report back....
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: scrw on April 27, 2011, 07:47:05 PM: :imwitstupid: Someone on the SA jeep forum had the same issue using a non genuine filter
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Simon J on April 27, 2011, 10:04:32 PM: Thanks for the suggestion about the filter, guys. I suspect the filter isn't a genuine one but not sure if I can get my hands on one where I am at the moment. I'll pick one up on my next trip home. Is it readily accessible to change it?
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Simon J on June 01, 2011, 07:51:56 PM: OK, so I found that my local Land Rover dealer also services Jeeps and carries Mopar parts, etc., so I got them to do an oil and filter change and they checked for fault codes but everything was fine. But there's still a three to four second delay in the oil light going out - is that normal on the CRD?
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Dave69 on June 01, 2011, 08:54:34 PM: pattern filters can be a problem on all cars and the cost from pattern to genuine can be surprisingly close. give it a week and see if it improves, one possibility is that the sensor migh have some sludge lodged (dont think of a big lump of crud) which will cause a delay in the sensor responding.
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Simon J on June 02, 2011, 07:12:38 PM: Yeah, I forgot to ask them what filter was on it. But that aside how long do others find it takes for the light to go out?
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: MOCAJ on June 02, 2011, 07:47:26 PM: not sure about your KJ probs, my 2002 CRD didnt do it but i can tell you that the Jeep oil pressure sensors are pants

replaced 2 on my Tj's, they tell you you have no oil pressure on start up which is a little worrying but everything is fine. Replace the sensor and all good :greggmo:
Title: Re: 2004 Cherokee 2.8 CRD - how long for oil pressure light to go out?
Post by: Simon J on June 04, 2011, 12:13:21 PM: I'll maybe look into replacing the sensor - is it a big/expensive job on the 2.8? I suppose not.