keep truck running cooler
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Mountain Pass
Joined: Sep 2010
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keep truck running cooler
oks so would something like sea foam in the oil make it run hotter? and do you guys think something like this will keep it running cooler at all?Gunk/16 oz. Liquid Kool super coolant optimizer (C1516) | Radiator Cleaner and Additive | AutoZone.com
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Mountain Pass
Joined: Sep 2010
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well im useing the stock gauge to see that its hot,no numbers on it but 2maro im going to install a nicer gauge that tells the temp on it,it runs to close on the hot side on stock gauge,it heats up quick when it sits and idles but cools down a little after driving it a ways
Junior User
Joined: Dec 2010
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First of all, what's your particular cooling problem/situation? There are about a million different problems and solutions when it comes to cooling and it would really help to hear what kind of overheating problems you're having...
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Mountain Pass
Joined: Sep 2010
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well im not sure what normal running temp on a 351m,it gets to the line on the hot side of the gauge but,its got a bigger radiator than the stock one,so i dont see why that wouldnt help.
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Post Fiend
Joined: Jan 2006
Posts: 5,037
Likes: 9
From: Kasson, Minnesota
I would definitely get a different gauge to what the actual temp is. Stock gauges can be off alot. I'd also think about replacing thermostat and making sure the radiator is flushed. Does the fan have a fan clutch? Again, before replacing parts, see what the temp is, post back and lets go from there.
Posting Guru
Joined: Mar 2009
Posts: 1,427
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From: Huntington WV
If you are looking for it to run cooler in general you could get a 6 blade fan from Summit & go with a electric fan. Is the truck steaming or just the gauge showing it to be hot. An are there any lights on the dash that come on? Has everything been checked hoses waterpump etc.. on it?
Cargo Master
Joined: Oct 2010
Posts: 2,674
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From: Ideeho
Ive never been a real fan of "mechanic in a can" type products. They usually do nothing more than mask an underlying problem. About the only thing I use is some seafoam occasionally in the fuel. It does help keep your carb cleaner.
Junior User
Joined: Dec 2010
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I always start with the cheap/easy stuff first and work down the list when it comes to cooling: thermostat, waterneck, hoses, radiator flush, then fan, fan clutch, water pump, radiator...you get the idea.
If you're running hotter at idle/standstill than when you're under load or driving, the coolant might not be circulating correctly. That might be as simple as a stuck thermostat or as complicated as a failing water pump. Hard to tell.
But, like I said, start with the easy and cheap stuff and work your way through the problem that way. And 78 PEB is right: the snake oil additives are pretty much just that. You'll find all kinds of arguments for stuff like wetter water, but I'll bet it's a mechanical problem that can be solved with parts as opposed to cans...
If you're running hotter at idle/standstill than when you're under load or driving, the coolant might not be circulating correctly. That might be as simple as a stuck thermostat or as complicated as a failing water pump. Hard to tell.
But, like I said, start with the easy and cheap stuff and work your way through the problem that way. And 78 PEB is right: the snake oil additives are pretty much just that. You'll find all kinds of arguments for stuff like wetter water, but I'll bet it's a mechanical problem that can be solved with parts as opposed to cans...
Posting Guru
Joined: Mar 2010
Posts: 1,196
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Get a real gauge on there...see where you're actually at. I've learned from guys on other sites that are way smarter than me, that these engines were designed to peak at 209*, and if you're under that, you're good.
