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Old 02-09-2014, 10:19 AM
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Head gaskets.......opinions

I'd like some opinions on my scenario. Started blowing cold air at idle when heat is on. Have the degas bottle just barely filled with ELC and doesnt seem to have loss, if there is its very minimal and I cant tell. Buddy said clogged heater core I thinking possibly head gaskets. Bought truck at 145K oasis report had new EGR cooler and heads installed at 92K. Guy before me had EGR welded up/deleted and Edge programmer. For preventive measures I had my mechanic check for blown head gaskets and he said no, I had an EGR delete for him to install and new oil cooler after I did a thorough flush and added coolant filter. Thats when i found out about welded EGR cooler, then just replaced oil cooler. Worse deltas ever are under load is 13 degrees. Just put a jerry rigged coolant pressure guage on degas bottle got her up to temp and did a few romps, never got over 12PSI but I never stayed on it forever either. Kept running out of room, however the pressure climbed really quickly which is making me think head gaskets. Thoughts?
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Old 02-09-2014, 10:41 AM
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well if your coolant pressure you MIGHT have one that is starting to go, be more worried when it hits 15-16. also, your cold air issue could also be a stuck thermostat. what is your ECT? and do you have a monitor?
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Old 02-09-2014, 10:59 AM
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Quote:
Originally Posted by drivininidaho View Post
well if your coolant pressure you MIGHT have one that is starting to go, be more worried when it hits 15-16. also, your cold air issue could also be a stuck thermostat. what is your ECT? and do you have a monitor?
I do, I have the Edge Insight and check deltas regularly, coolant temp is in the 190 range but fluctuates between 187-195 and oil in the 199-202 range.
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Old 02-09-2014, 07:51 PM
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Off idle does she have normal heat? If so I would look into your water pump. If not then I would suspect the heater core being vapor locked, and most likely a head gasket leak.
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Old 02-09-2014, 07:54 PM
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I gotta agree with the possible slipping water pump as well.
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