Heating Issue - 89 F250 -

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Jan 30, 2015 | 05:47 PM

GKTECC

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Heating Issue - 89 F250 -

Good day all,
New to this site. Okay 89 F250 w/351. Crate motor couple years old. 6 months ago new radiator and heater core. Just put in a new water pump and second thermostat. All NAPA based parts.

Truck wont heat. Seems not to be circulating. Let truck warm up, gauge only goes to the N on normal. Top hose gets almost hot..bottom hose cold.

Tried pinching off the top hose...no change. Tried Cardboard in front of radiator..no change.

I use to have scorching heat...not verified after new heater core and radiator went in during the summer.

I am now lost on what to do next.

Any input would be greatly appreciated.

GKTECC

Jan 30, 2015 | 08:38 PM

Spktyr

Laughing Gas

Joined: May 2004

Posts: 1,062

Likes: 6

From: Dallas, TX, USA

Pull and check thermostat in pot of boiling water. Chances are your thermostat has failed - parts quality has taken a big nosedive lately on a lot of things.

Jan 31, 2015 | 07:35 AM

tjc transport

i ain't rite

Joined: Mar 2005

Posts: 65,507

Likes: 5,563

From: Marlboro Mental Hospital.

agreed. check the t-stat. the top hose is block outlet, bottom hose is block inlet. so the top should be hot, and the bottom should be cold, or cooler than the top hose.

Jan 31, 2015 | 08:59 AM

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,786

Likes: 1,751

From: Kentucky

Quote:

Originally Posted by GKTECC

All NAPA based parts.

GKTECC

Even NAPA has had to fall back on lesser quality parts to stay competitive. Adopt the "Good Parent" mentality: Trust, then verify!