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Old 05-22-2013, 05:59 AM
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New Water Pump - High EGT's/Coolant Temps

Hey guys I recently had to have a new water pump put on just a month after I had a new radiator and now my EGT's and coolant temperature are significantly higher. I took it in to the ford house and they ran every test on it and cant explain the increase. Has anyone else had any issues like this.

Prior to new water pump my EGT was typically around 300-500 city and 400-650 highway. 188 always seemed to be the constant number for my coolant on the highway. Now my coolants running high 190s consistently and bounces up to 200 + under minimal acceleration. My EGT's are now always around 700 and up. All figures are when truck is fully warmed up.

Any ideas? Seems awfully high for a truck thats deleted and not towing a load.
Thanks for any feedback!
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Old 05-22-2013, 03:58 PM
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does it have air trapped in the cooling system?
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Old 05-23-2013, 04:26 AM
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shouldn't. When I took it back in they supposedly flushed it, pressure tested it & brought it all back to normal levels. But it's still running hot.
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Old 05-23-2013, 07:06 PM
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different fuel blend warmer ambient temperatures?
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Old 05-23-2013, 07:23 PM
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How are you monitoring your coolant and EGT temperatures?

Randall
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Old 05-27-2013, 10:06 AM
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I'm monitoring all on my mini maxx and the digital readings in the instrument cluster. I took it back in and they said that all were in "Specs" and the service manager printed out a sheet listing the results from testing and the factory parameters. After reviewing the print out I noticed the truck's coolant hit 212 during the "Testing" after I checked my pants, I took it to him and said 212!! thats hot! He simply replied by, "It's within the factory specs, continue to keep an eye on the coolant..."

I don't know what to do... BUT I did have a thought... When I deleted the truck obviously they had to replace lost coolant during the process and I'm certain they didn't go with motor craft brand. I'd assume that when the water pump was replaced at the ford house they changed my coolant back to motor craft. I WONDER if running the two different kinds of coolant could have caused that significant of a change in temperatures. It would seem like if anything the motorcraft brand would have been the lower of the two temperatures but who knows...


Any thoughts?
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Old 05-27-2013, 10:19 AM
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i would say the coolant and types isn't an issue with temps
however it could be an issue down the road

Here is my thinking even if your cooling is running hotter for some reason
why would EGT's be soo much higher ?

it's not proportionate wit the EOT temp increase IMHO


I am thinking your EGT's are the issues and those are raising the ECT temps
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Old 05-27-2013, 10:27 AM
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You might be exactly right, even if not, you definitely helped open my eyes... I've been focused on identifying problems with the coolant and water pump and have had some serious tunnel vision. I've noticed my turbo whining a little different, increased boost under normal situations and also an increase in smoke.... Maybe I was just trying to hard to make the issue coolant related.

I think I'll run the updates and see if that will help.

Thanks for the help opening my eyes to other possibilities ZMANN
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Old 05-27-2013, 10:30 AM
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I'm curious if these Techs didn't try and take a joy ride on a tuned, deleted & souped up truck and ended up causing some problems elsewhere....The tech did mention this was the first one he'd seen and sure asked alot of questions about it.
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