'92 GQ oil pressure

Submitted: Wednesday, Oct 01, 2003 at 19:21
ThreadID: 7540 Views:1879 Replies:7 FollowUps:0
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This weekend just past myself and my wife both drove our 92 GQ at the Bullsbrook (WA) 4x4 Gymkhana, now the car was getting pushed quite hard. The question is that normally the oil pressure sits at 2 on idle and 4 while driving but during the comp it sat right up between 6 and 8, it is back to normal now but I was getting a bit concerned, has anyone else had this problem and if so what cured it.
I couldn't find anything in the gregorys manual regarding this topic.

Thanks in advance

Mark (WA)
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Reply By: GLAYVA MAN(bendigo) - Wednesday, Oct 01, 2003 at 19:51

Wednesday, Oct 01, 2003 at 19:51
gday mark.
my gq usually sits on about 4 but when its cold 6-8 if backing of down a hill 6-8.
i wouldnt be to concerned original guage probly not that spot onjamieson wild cat
AnswerID: 32532

Reply By: Martyn (WA) - Wednesday, Oct 01, 2003 at 20:14

Wednesday, Oct 01, 2003 at 20:14
Mark,
I have a 92 GQ, the oil pressure read anywhere between .5 and 4 dpending on a lot of things, tyre pressures, ambient temp, speed, how many people are in the fourby etc etc. The gauges on the 4.2 aren't known for their accuracy, as long as the light goes out and the gauge moves you're right. Going higher than 4 is unusual and not something I personally have heard of before, you must have the optimists gauge. There are a number of threads talking about this topic have a look. This is all my opinion stuff as usual. Keep the shiny side up
AnswerID: 32535

Reply By: David N. - Wednesday, Oct 01, 2003 at 20:16

Wednesday, Oct 01, 2003 at 20:16
There are many previous posts re these gauges. (sender problem)
I got sick of mine and put a mechanical full swing VDO so now I know I have good oil pressure.
AnswerID: 32536

Reply By: peterK - Wednesday, Oct 01, 2003 at 20:37

Wednesday, Oct 01, 2003 at 20:37
Mark
I did a sender unit in the High Country at xmas, the indication was the guage sat high 6-8, but stayed there. Also my oil light came on - but not a full glow (i know it doesnt have variable settings - but I have witnesses).
Not much help I know, but at the same time I cooked a battery - so I think that may actually have triggered it all.
My understanding is that Nissan took out the guage in the GU, as it wasnt that accurate anyway.
cheers
peter
AnswerID: 32540

Reply By: floyd - Wednesday, Oct 01, 2003 at 20:39

Wednesday, Oct 01, 2003 at 20:39
The sender is the problem. It is common on Patrols. I had one that started to read low and Nissan checked the pressure with a special funky device and said that the pressure was fine. Had 2 senders put in until one of them read the same as the special funky device. Aparently this is common on all of these models. Get it checked so as you sleep well and then get a good sender so as it reads right.
AnswerID: 32541

Reply By: Willie - Wednesday, Oct 01, 2003 at 20:59

Wednesday, Oct 01, 2003 at 20:59
My oil pressure guage has been lying on zero for years. The sender is crook and I could not loosen it from the block.This would have meant drilling it out and running a tap back into the block in fitting a new sender. Decided not to worry about it and disconnected the lead.
Cheers,
WillieNever a dull moment
AnswerID: 32546

Reply By: Big Trev - Tuesday, Oct 07, 2003 at 13:33

Tuesday, Oct 07, 2003 at 13:33
I have had my 1989 Nissan Maverick / Ford Patrol (Diesel) for 12 years, it has only now done about 170,000. The oil pressure gauge has read low since day dot. It will read a little higher after an oil change, or when its cold, but it generally sits in the bottom 1/8th or 1/4 of the gauge. I am not at all worried about it. Great motor, very hard to break.
AnswerID: 32986

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