Question about 1988 Ford F 150

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Heater hoses diagram

2 hoses from firewall to engine

Posted by Anonymous on


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Posted on Jan 02, 2017

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SOURCE: engine heats as normal both heater hoses hot at

I have a 70 mustang that did that. My problem was the core was clogge and the water couldnt circulate through properly. I took both hoses loose and sprayed the garden hose through each one to clean out the system. took about 10 minutes but my heater started blowing hotter air. you can use a spray gun on the end of the water hose when you point it in the heater hose. dont use a high pressure hose, just a garen hose with a sprayer on it.

Posted on Oct 06, 2009

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SOURCE: got a 1995 mustang with

one goes to waterpump other one goes to intake . more than likely one hose will be longer than the other.

Posted on Nov 12, 2010

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I own a 2004 Buick Rendezvous, its a 3.4 liter engine and it's leaking coolant from an elbow on the engine firewall, on the passenger side. It only happens when the heater or the a/c is on. Would you...

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