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Truck running hot

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Old Jun 25, 2012 | 11:52 AM
  #11  
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my truck is at dodge for wheel hubs and a problem with it getting hot, we had a heatwave recently and anytime i turned the ac on it would go up about 3/4 of the way on the temp gauges, ive never seen a truck get that hot. Im hoping its not a head gasket problem, ive got 67000 on the vehicle. Theyre checking it out,
 
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Old Jun 25, 2012 | 02:57 PM
  #12  
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Originally Posted by mikeg87xx
I would not be surprised if the waterpump is going bad or has gone bad already... are you running a 50/50 mix or 60/40 mix of coolant btw?
Not sure actually. When the hose was replaced I think they put in just antifreeze, it was one gallon. I think they added 2 more gallons when they installed the radiator. I have thought that that could be the problem.
 
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Old Jun 25, 2012 | 02:58 PM
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Originally Posted by sdsdsd
I had the same problem. I replaced the radiator, thermostate. water pump, fan clutch. By the way their are 3 differnt radiators listed for the Dakota.
Turned out I had a blown head agasket, # 8 cylinder. When the head was removed the spot the gasket blew ate away at the head. I had to have the head welded then resurfaced. I was told by a Dodge mechanic after the job was done that they never machine or repair cylinder heads the issue just comes back. He said they always replace with a new head.
If I was to do this again I think I would just replace the Engine. This happened @ 79K miles by the way.
How convienient for Dodge after the warranty expired!
If it's something to the point of having to replace the engine, I'll just dump the thing. It's already cost me way more money than it should have. I could list a page full of problems I've had with it.
 
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Old Jun 25, 2012 | 09:47 PM
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I'd start with the easy do at home stuff to eliminate. Get a hose flush kit and flush the cooling system. Rent a pressure tester and check system pressure. Test cyl pressure even, if a head gasket is blown at least 1 cyl should be noticeably low. Maybe it's not something that happens as much as I thought but the oil should be milky with a blown head gasket, or sweet smelling exhaust. If none of that shows anything I personally would just replace the water pump with a high flow one, blown installed one of these in his supercharged truck http://www.racepages.com/products/?D...Ntt=gmb1204350
 
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Old Jun 25, 2012 | 10:35 PM
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If the head gasket is blown, won't there be coolant in the oil? I had the problem with a previous truck, but can't remember which gasket caused it. There isn't any coolant in the oil, or oil in the coolant.
 
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Old Jun 26, 2012 | 07:55 AM
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I've always been taught/told yes but I have worked on vehicles that have had a blown head gasket with no coolant in the oil which is why I suggested checking for compression and cooling system to see if it holds pressure.
 
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Old Jun 26, 2012 | 10:01 AM
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Yeah sometimes the head gasket can be blown but you may not have any leakage from the coolant galleries into the crankcase. Doing a compression test should definitely help though.
 
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Old Jun 26, 2012 | 10:19 AM
  #18  
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Originally Posted by Holbrook.Jeremy
If none of that shows anything I personally would just replace the water pump with a high flow one, blown installed one of these in his supercharged truck http://www.racepages.com/products/?D...Ntt=gmb1204350
I just bought that model from advance auto for $45 with a $25 off $50 certificate for a future purchase.
 
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Old Jun 26, 2012 | 11:07 AM
  #19  
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and if it is a blown head gasket do NOT go putting that autozone stop leak sealant stuff in. Ive seen people do that and it just makes things worse, sorta like putting FixAFlat in a leaking tire... bad bad bad.
 
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Old Jun 26, 2012 | 12:53 PM
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Originally Posted by mikeg87xx
and if it is a blown head gasket do NOT go putting that autozone stop leak sealant stuff in. Ive seen people do that and it just makes things worse, sorta like putting FixAFlat in a leaking tire... bad bad bad.
I think if I was faced with having to spend $$$$ to rebuild a motor (and I did not have that kind of money) or spending $10 for a can of head gasket repair, I would chance the head gasket repair stuff. What do you have to lose? You going to have to tear it apart to fix it or replace the motor anyway.
 
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