Thermostat

**REVNORR82** · 12-02-2011, 11:22 AM

Im sitting in traffic and my truck is running hot what would be the best thermostat to use like a 185 or 180

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**konigandy6** · 12-02-2011, 11:29 AM

By running hot what do you mean? Is the guage in the red? Are you low on coolant?

**REVNORR82** · 12-02-2011, 11:36 AM

The coolant is fine its seems to be running above normal and the truck is running like shit

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**konigandy6** · 12-02-2011, 12:17 PM

Any SES lights coming on? When running like shit, is it feel like it's bogging down, is it missing, is it shaking at idle...?

**REVNORR82** · 12-02-2011, 04:07 PM

No lights and it starts to shake and feels like it's missing but when I take off its fine

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**Smittro** · 12-02-2011, 05:09 PM

Just gonna toss this out there.... "Could be" a leaky head gasket starting..

**REVNORR82** · 12-02-2011, 08:19 PM

I hope the hell not

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**konigandy6** · 12-03-2011, 05:23 AM

Originally Posted by Smittro

Just gonna toss this out there.... "Could be" a leaky head gasket starting..

Not real common on the GMT900's.... but that does make sense.

**Smittro** · 12-03-2011, 02:33 PM

Originally Posted by konigandy6

Not real common on the GMT900's.... but that does make sense.

I sincerely hope it's not.. Just have that feeling it "might" be.

**5.0THIS** · 12-03-2011, 08:03 PM

If it is a stat, just put a stock replacement back in.

**REVNORR82** · 12-04-2011, 07:04 AM

i was just wondering why not to use a lower temp thermostat and what is the best sparkplug replacement.

**5.0THIS** · 12-04-2011, 09:27 PM

Originally Posted by REVNORR82

i was just wondering why not to use a lower temp thermostat and what is the best sparkplug replacement.

Your truck isnt heavily modified or anything, so there really isnt anything to be gained going to a lower temp stat. Stay with OEM spec parts until you have a reason to switch to something otherwise. As for plugs, I would go with an ACDelco Iridium replacement plug.

**konigandy6** · 12-05-2011, 05:26 AM

Originally Posted by 5.0THIS

Your truck isnt heavily modified or anything, so there really isnt anything to be gained going to a lower temp stat. Stay with OEM spec parts until you have a reason to switch to something otherwise. As for plugs, I would go with an ACDelco Iridium replacement plug.

This

100k mile plug and it's an OE replacement.

**REVNORR82** · 12-05-2011, 05:30 AM

Ok I have had some people giving me mixed info on thermostat and as for plugs its always a toss between ac and ngk I have a buddy with a few dry similar truck and he said at a 100000 he had to service the coolant system with new stuff and the truck ran cooler so I am approaching that mark so I guess its time.

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**REVNORR82** · 12-10-2011, 07:17 AM

Well next thought a very smart friends of mine said it could be clogged cats causing all the problems any thoughts on that.

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**konigandy6** · 12-11-2011, 09:05 AM

Originally Posted by REVNORR82

Well next thought a very smart friends of mine said it could be clogged cats causing all the problems any thoughts on that.

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That would usually throw a SES light, and would cause the vehicle to surge and hesitate on heavy acceleration.