No heat... check engine light...!! - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 02-17-2013, 05:03 PM Thread Starter
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No heat... check engine light...!!

2008 with no heat, there is a green "wrench" on the dash and the temp gauge goes to over heat (engine reduced power).

After a few more min of driving, wrench light stays on, but truck temp goes down. And still no heat.

But... i can turn on the heat and it will blow hot for about 30 seconds.

When i cut the truck off, the code resets.

Im new to powerstroke.org and need some help.

thanks in advance!!

Also the thermostat was changed today. Problem still going on.

Last edited by Baker58; 02-17-2013 at 05:04 PM. Reason: forgot info
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post #2 of 11 Old 02-17-2013, 05:15 PM
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Get those codes pulled.

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post #3 of 11 Old 02-17-2013, 08:47 PM
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Possible thermostat issue which will set a wrench light on the newest calibrations.

Get those codes pulled asap and keep an eye on your coolant level until then

-Matt

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post #4 of 11 Old 02-18-2013, 10:45 AM Thread Starter
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When I get the codes read... It says no codes found.
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post #5 of 11 Old 02-18-2013, 11:21 AM Thread Starter
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Is it possible it's a heater core?
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post #6 of 11 Old 02-18-2013, 08:14 PM
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Pids will need to be monitored by the dealer on a test drive to prove thermostat variation.
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post #7 of 11 Old 02-20-2013, 10:45 AM Thread Starter
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got two codes...

P012F and P0297.

whats this mean guys...
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post #8 of 11 Old 02-22-2013, 09:08 PM Thread Starter
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Guess no one knows haha.
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post #9 of 11 Old 02-23-2013, 08:22 PM
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Quote:
Originally Posted by Baker58 View Post
Guess no one knows haha.
I had 5 of these like this p012f is a ect/eot correlation code this means your oil cooler is clogged or either your ect or eot sensors are biased, you say you have no heat! either the heater core is blocked and is it is its blocked with the same crap that blocked your oil cooler or your blend door motor is bad! feel your heater core hoses if one is hot and the other is cold then your core is blocked! I would also think is all that is good you may have a bas water pump!!

the P0297 is a vehicle overspeed!!! SLOWDOWN lol


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Last edited by JUGERNAUT; 02-23-2013 at 08:25 PM.
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post #10 of 11 Old 02-23-2013, 09:00 PM Thread Starter
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Thanks man

I have had the thermostats replaced. Now the engine does not overheat.

I have to get a oil temp sensor replaced on tue now.

The truck does have heat now... At times. It gets real hot... Ten seconds later its cold again. It's like the heat only works when I'm on the gas. When I'm off the gas... Cold again.

It's weird to me"
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