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Originally Posted by ketcat
I live in Phoenix and mine runs in about the middle of the gauge most all of the time. The only exceptions are when it's over 100 and I'm moving slowly (4 wheeling) or stopped (idling in parking lot). At those times mine has gone all the way to the bottom of the H on the gauge and I'm pretty sure if I kept letting it idle it would have continued to get hotter. The last time it happened I was in a store and my wife and kids were sitting in it idling with the A/C on for about 20 min. It was 113 and she was sitting in a parking lot in direct sun. When I got in the needle was all the way to the bottom of the H. After driving for about 5 miles the needle was back to the middle of the gauge. About 30 minutes after I got back in the H3 we went through two drive thru?s which took about 10 to 12 min and by the time we got moving again the gauge was back almost as high as before.
Note: While the gauge on mine has gone very high it has never puked any coolant or overheated and the A/C has never stopped working. So unless your are in 110 PLUS temps for a couple of months at a time I would not be too worried about the gauge moving. If the A/C stop?s I would go straight to the dealer.
From what I understand it is a common problem in this area and Jay at Lund Hummer is working on a larger aluminum radiator for the H3.
As a side note he has completed a tune for the PCM and is getting some very good HP and TQ improvements from what I understand.
You can contact him at:
www.lundhummer.com |
I'm familiar with Jay....he and I have been talking quite a bit about H2 upgrades over the past few years. I live down the street from Lund.
Funny thing - I ended up getting my truck from Legends. Their Internet Service Manager didn't try and push anything strange onto me and when she couldn't find what I wanted, handed me an order checklist.