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GQ Turbos running Hot.

Posted: Wed Feb 16, 2005 9:07 am
by bazzle
A real lot has been posted re 4.2's running hot with turbos.
Also the definition of hot is not always clear - "the gauge moved"

The only cure from the 100's of posts "appears" to be 3 things.

1. If gauge goes to 3/4 Dont Worry. Nissan says this is still normal on the gauge.

2. Check therm fan coupling, they DO stop working properly.

3. Ensure rad is removed and hosed out thru all the fins esp around perimeter. One bog hole........

Bazzle

(Edited once so far.)

Posted: Wed Feb 16, 2005 9:25 am
by Tiny
mine runs hot when driving hard with low speedsw, and on the sand....thinking thermo will be the cure for me

Posted: Wed Feb 16, 2005 5:19 pm
by Hoonz
mine being all modified and all .. my temp sits at 1/3
i have no spotties on the front

when i had it rebuilt ... i had a new temp sender and water pump put on
and had my radiator pulled down and cleaned

Posted: Wed Feb 16, 2005 8:10 pm
by xw383
My G.U. was getting hot under load & the air-con was turning off. As bazzle said make sure your rad is taken out & cleaned. 75% of mine had spinafex stuck in the fins. Now no probs at all.

Posted: Wed Feb 16, 2005 8:22 pm
by muddies
MY gq was heating up down the highway. i founf that the bottom radiator hose was sucking closed so i put a spring out of a falcon radiator in and a new hose problem solved.

Posted: Wed Feb 16, 2005 10:32 pm
by roadkill
I have an MK SWB and 4x4ing it gets quite hot - just under the redline. Changed the water / coolant and that helped a lot but it still gets too hot working hard at low speeds.