ect running hot after flush
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Freshman User
Joined: Sep 2011
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ect running hot after flush
I flushed my cooling system & switched from Ford Gold to ZEREX ELC cat 1. I did not backflush the Oil cooler. I just took my truck for a ride to check my ECT/EOT. At first everything seemed OK. The ambient temperature was 92. I was running on level ground at 65 mph. My Ect was 196. My Eot was 205 while running at 65 Mph. I got off the highway & was running about 30 Mph.when my Ect started creeping up to 202 & my Eot was 208. I took my truck home & let it idle for about 5 minutes & the Ect dropped back down to 190. My Eot also dropped. Could it possibly be running hot because I didn't backflush the Oil cooler?
Hotshot
Joined: Jul 2005
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From: Middle Tn.
I flushed my cooling system & switched from Ford Gold to ZEREX ELC cat 1. I did not backflush the Oil cooler. I just took my truck for a ride to check my ECT/EOT. At first everything seemed OK. The ambient temperature was 92. I was running on level ground at 65 mph. My Ect was 96. My Eot was 105 while running at 65 Mph. I got off the highway & was running about 30 Mph.when my Ect started creeping up to 202 & my Eot was 208. I took my truck home & let it idle for about 5 minutes & the Ect dropped back down to 190. My Eot also dropped. Could it possibly be running hot because I didn't backflush the Oil cooler?
Logistics Pro
Joined: Dec 2004
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From: South Weber, Utah
How long did you run it before taking the lower valued temps? Because the higher temps are more normal to me than a concern. You need to run it for a good while to get everything warmed up. I live 7 miles away from my work and even on the hottest day the temps do not get up to normal at that distance. I would think something around 20 to 30 mile drive would give a better indication of actual hot running temps. Also did you check the temps before the coolant change? and if so what were they?
Hotshot
Joined: Jul 2005
Posts: 13,834
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From: Middle Tn.
How long did you run it before taking the lower valued temps? Because the higher temps are more normal to me than a concern. You need to run it for a good while to get everything warmed up. I live 7 miles away from my work and even on the hottest day the temps do not get up to normal at that distance. I would think something around 20 to 30 mile drive would give a better indication of actual hot running temps.
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Joined: Sep 2011
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69cj I ran my truck about 35 miles while it was running hot. I'm just concerned because it wasn't running hot like that before my coolant flush. Before my flush, the coolant temp. allways stayed about 190 or 192. I also had a misprint. My ECT was 196, not 96 & my EOT was 205, not 105. sorry about the mistake
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Senior User
Joined: Jul 2012
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From: Tampa
My temps get up there in town also, have seen 206 with easy driving. Ambient temps 90+. Deltas are 3-5 in town. PM'd one of the guru's and seemed to think with the delta being in spec that i'm good to go. Mine is also seemingly hotter lately not sure whats contributing to it.
At highway speed I to and usually in the mid 190's-200 depending on how fast.
At highway speed I to and usually in the mid 190's-200 depending on how fast.
Posting Guru
Joined: Jun 2012
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From: Nor Cal
Those temps are about what mine are. I understand your concern, I was already planning on back flushing my oil cooler tomorrow. I've seen my deltas as high as 13. That scsngage is freaking me out, can't take my eyes off it. Life was so much simpler without it. I don't even listen to the radio anymore. I'm listening to the truck, smelling the air, I even hour my hand out the window feeling for coolant blowing by. LOL. That things making me a nervous wreck. I'm gona' have to learn h
ow to live with it.
ow to live with it.
Senior User
Joined: Jul 2012
Posts: 137
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From: Tampa
Those temps are about what mine are. I understand your concern, I was already planning on back flushing my oil cooler tomorrow. I've seen my deltas as high as 13. That scsngage is freaking me out, can't take my eyes off it. Life was so much simpler without it. I don't even listen to the radio anymore. I'm listening to the truck, smelling the air, I even hour my hand out the window feeling for coolant blowing by. LOL. That things making me a nervous wreck. I'm gona' have to learn how to live with it.
ow to live with it.
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