temp gauge

Submitted: Monday, Feb 24, 2003 at 21:47
ThreadID: 3521 Views:975 Replies:3 FollowUps:1
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I have '92 4.2EFI GQ Patrol and once it's been driving for a while the temp gauge starts to move up to around the 3/4 mark then slowly come back to 1/2 where it normaly sits. The coolant used is genuine nissan, the levels are perfect and it has been pressure tested for leaks etc(for cylinder head damage) It has just recently started to do this and up until now never moved above 1/2.
Has anyone else had the same problem.
I have the ARB Deluxe winch bar with 3 large spots in the middle, could this be reducing air flow and causing the gauge to rise?

Any help would be appreciated

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Reply By: Voxson - Monday, Feb 24, 2003 at 21:49

Monday, Feb 24, 2003 at 21:49
sounds like a thermostat jitter...........
AnswerID: 13852

Reply By: Frank - Wednesday, Feb 26, 2003 at 01:50

Wednesday, Feb 26, 2003 at 01:50
You're right, the more obstructions you place in front of the radiator grille the more likely that the cooling efficiency will drop. You did'nt mention wether your patrol also has the electric fan attached to the radiator. Mine cuts in at about the 3/4 mark, at which time I notice the temperature drop back to half. These electric fans have their own temperature sensors, just trace the wires from the electric fan to the sensor which on mine is tapped into the radiator. These should not cost much, and replacing them are simple.

AnswerID: 13962

Reply By: Flash - Wednesday, Feb 26, 2003 at 13:14

Wednesday, Feb 26, 2003 at 13:14
If it rises and then settles and behaves it has to be thermostat related. Be very careful you fit the correct one!
AnswerID: 13988

Follow Up By: Truckster - Thursday, Feb 27, 2003 at 22:27

Thursday, Feb 27, 2003 at 22:27
Have fitted 2, they are both Genuine Missan ones.
FollowupID: 8413

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