Heat doesnt work too well
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Senior User
Joined: Nov 2008
Posts: 460
Likes: 0
From: Gifford, IL
Heat doesnt work too well
My dad's 03 PSD is getting pretty iffy with the heat (120k miles). It works fine if your driving, but as soon as you let it idle or let of the throttle it starts to lose the warmth and gets cold. As far as i know the engine temp is stayin normal, so what could be causing this? Is that normal for 20* weather, or is there a problem with the heater core or somethin along those lines?
Postmaster
Joined: Jul 2005
Posts: 3,956
Likes: 6
From: Abilene, Texas
sounds like the heater core is getting stoped up. A flush should solve the problem. plus getting a coolant bypass filter would help prevent it from doing it again. dieselsite makes one that is very popular on here. I plan to get one.
Post Fiend
Joined: Dec 2002
Posts: 6,245
Likes: 1
From: IL, USA
I agree on the heater core.
When I was talking with Doug at GoGoDiesel/Direct Inj. Perf. he mentioned that it's common for the heater core to get clogged with all the stuff that the coolant filter will take out. I ordered my coolant filter kit for my 07 from him.
When I was talking with Doug at GoGoDiesel/Direct Inj. Perf. he mentioned that it's common for the heater core to get clogged with all the stuff that the coolant filter will take out. I ordered my coolant filter kit for my 07 from him.
Cargo Master
Joined: Feb 2008
Posts: 2,862
Likes: 44
From: Tooele, UT
the supply hose goes in through the firewall on the passenger side then the return line comes out and runs along the firewall to the bottom of the degas bottle. disconnect the supply line after this valve
then take it off the bottom of the degas bottle. get yourself a garden hose and flush it backwards from the degas side to the valve side. run water through it until you don't see anymore crud coming out and it should be good.
then take it off the bottom of the degas bottle. get yourself a garden hose and flush it backwards from the degas side to the valve side. run water through it until you don't see anymore crud coming out and it should be good.
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