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Replace heater core for 1998 E350 ford van 5.4l engine

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Posted on Jan 02, 2017

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SOURCE: step by step replacing heater

If bolts won't come out and you've taken the nuts off, Then they are stiuds.Locate the heater hoses where they enter the firewall. The heater core is right on the other side of firewall. Which you probably already know. Good luck

Posted on May 31, 2009

  • 1 Answer

SOURCE: 1993 Ford Aerostar - Replacing heater core

Inside on the passenger side under the dash you will find a large black box. It has several screws holding the cover on. You remove the core from there. It helps to take the jockey box out first. But, the hoses to the core are outside under the hood on the passenger side. These usually have C-hook clamps on them. That means you need a special tool to get the clamps off, then the hoses slide off the rubber gromet on the core from the outside, by simply pulling on them. You can find the two hoses on the far left when you are outside on the front of the vehicle. They project from a small are on the side of the heater fan housing. Remember to save the clamps, most new cores do not come with.

Posted on Jan 19, 2009

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SOURCE: 95 e150 ford cargo van heater core replacement

buy a manual for 10 bucks

Posted on Feb 06, 2009

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SOURCE: need to replace the heater core

Under the dash for sure, but you may need to drop the whole box and may be mounted with bolts from the engine compartment. You will need to disconnect the hoses from the core from under the hood

Posted on Mar 26, 2009

  • 1 Answer

SOURCE: 2003 ford van e350 rear air vent is not blowing

Try this article. I have the same problem and I think it is the vacuum motor that controls the door for changing from hot/cold in the rear heater box (located inside behind the L rear wheel)

Posted on Jul 22, 2009

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I have a 1994 Ford e350 club wagon van.When i start the vanand turn the heat on it stay on for approx mins then starts blowing cold ar. blower motor, blower motor resistor, thermastat,control switch have...

is your heater core hooked up, on most vehicles there are two hose on the left side under the hood that goes thru the fire wall if they are not there then that,s your problem bad heater core.

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i have a 2000 Ford E350 1 ton Van the heat works in front but blows cold air in rear. Would the problem be a blower heater switch and where is it? I hope I don't have to take off the whole dash.

Jan 28, 2010 | 2002 Ford E350

1 Answer


My guess is that it's a plugged heater core. With the engine running carefully feel the hoses leading to the heater core, which is in the firewall. If both, or one of those hoses is cold to the touch your heater core is plugged. This involves tearing down a bunch of the stuff in the dash to reach. It's not a huge deal, but it's a lot of work. If you aren't comfortable with that I would take it to a shop.

Dec 15, 2009 | 1998 Ford Econoline

2 Answers

I have a 1998 e350 cargo van and the heater won't get hot. replaced the hot/cold button. cant find where the heater control valve goes. or if that is the problem. what should i try?

Check the heater hoses going into the heater core.Both of the hoses should be hot to touch,when the engine is at normal warm running conditions.If only one,or none of the two hoses are not hot,or very warm.then pull the heater hoses off,and use a water hose to flush the heater core out.Make sure the coolant level is full,if it is not,then the heater core will not get coolant flow threw it.

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Aug 28, 2009 | 1998 Ford Econoline

1 Answer

Need to replace the heater core

Under the dash for sure, but you may need to drop the whole box and may be mounted with bolts from the engine compartment. You will need to disconnect the hoses from the core from under the hood

Mar 26, 2009 | 1998 Ford Econoline

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