Question about 1997 Ford Econoline

1 Answer

I have a 97 ford E150 5.4L, when I'm pulling a hill the air shifts from the vent to the floor. I've had it in a shop, and they replaced the mode switch, but it still cuts out on hills. Some da

When the air cuts out, I can hear the directional door changing positions. The mechanic added an extra vacuum canister on it, but problem still remains.

Posted by on

  • Doug Blakney Apr 20, 2013

    I removed the battery and box, and checked the lines. I traced the line back to engine, to the vacuum canister, and to control head. I found no leaks, or breaks in the lines. I did however find the line to the canister was plugged on wrong side of check valve, and switched it to the side that the line was on going inside the van, and switched it to the side that the canister was plugged to. My problem was solved, but still at times when going down the road, I can hear the mode valve moving, and shutting some, but the air stayed steady either way. One thing that concerns me though is that before when I first got it out of the shop, it was working correct. The weather was cool then, a few days later when the temp was in the 80's, it started back giving me problems like before. Today the weather has been in the high 50's, and after switching the lines on the check valve, I put it all back together, it is working right now. Do you think the weather had an effect on it, or it was just coincidental??

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 20 Answers

You can take a diagnostic for your ford cars. How many miles you drove? if abrade, you can use a FORD diagnostic .


Posted on Apr 19, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 37 Answers

SOURCE: PROBLEM WHEN SELECTING THE DIRECTION FOR THE AIR

Sounds like you have a supply vacuum problem. When you lose supply vacuum to the control head it defaults to defrost.

Posted on Mar 13, 2009

chuck943
  • 783 Answers

SOURCE: Vent control

You have a vacuum leak.Defrost is the default postion(no vacuum).
See if you can locate the small black vacuum line that goes inside the vehicle on the passenger side near the heater core. The trace it back,should see it going to a canister then to the intake manifold.Make sure it is not disconnected or broken somewhere.

Posted on Mar 02, 2009

  • 50 Answers

SOURCE: ac vent problem

the vacuum canister is located under the battery tray on this model truck, however the most common problem are the vacuum lines that run around the battery box. usually the battry will leak acid at some point in time and create holes in the small hard plastic lines. i would remove the battery and check the vacuum lines first.

Posted on Aug 18, 2008

juggernautxt
  • 145 Answers

SOURCE: 99 ford expedition 4.6 misses / egr? vacuum?

it's getting to much egr the egr has gone bad and needs replaced.
the diaphragm in the egr is leaking, and default position for air is defrost.so when you hit 3000 rpm you don't have enough vacuum.

Posted on Apr 30, 2009

warlock61
  • 659 Answers

SOURCE: I have a Ford E250 4.6V8. while accelerating the A/C...

usually the check valve is in the engine compartment. look on the pass side at the heater box and see if the vac lines have a check valve in it it should be a grey or black line

Posted on Jul 11, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Car doesn't kick down gear going up hills


A/T
The modern A/T has 4shift methods.
Foot (passing) called detent TV kick down cable.
the shift lever.
the Vacuum modulator (load, = hills)
and tail shaft RPM (speed)
so seems like the MOD on the A/T is bad.

Apr 06, 2013 | 1992 Geo Storm

1 Answer

Remove the center floor shifter console on a automatic 2005 chevy aveo


The center console needs to be removed, pull the shift plate plastic cover off,
remove two bolts inside the console storage box,
remove the fillips screws that are visible,
the front center storage box also has to be removed,

Feb 26, 2013 | 2005 Chevrolet Aveo Sedan

1 Answer

I have a 1999 Caddac DeVille . The AC works fine during the summer but in the winter it won't blow out hot air unless I'm driving. I've let the car run in the morning to warm up but the inside...


your heater core is possibly stopped up if there has been a radiator leak and stop leak has been poured its definetly clogged or could be a faulty thermostat

Jan 07, 2013 | Cars & Trucks

1 Answer

Why does my 1998 ford explorer stop blowing out of the front vents and start blowing hot air out of the floor vents and defrost vents when i start up a hill but when i get to the top it starts working...


Y You should check the filter goes on the floor vent.has to be change,and just in case it is a machine special to check air conditions,but not every one have it,the manufacturer or representative seller garage shop,they fixed but expensive

Sep 20, 2012 | 1998 Ford Explorer

1 Answer

My 97 Saturn SL2 won't go past 30 mph. Even with


I guess my first question would be - are you saying it is slipping in 3rd gear ? If you push the gas pedal to the floor it should downshift into a lower gear.
If it is slipping, or not upshifting into 3rd gear, I'm afraid chances are the transmission is toast.
You can take it to a couple of shops for estimates but they will probably want to pull the pan and take a look inside.

Sep 15, 2012 | Cars & Trucks

1 Answer

Gear shift is loose


You will need to pull the steering column apart and inspect it for worn parts, I've never seen this in all the years I've worked for a Ford dealer

Sep 12, 2012 | 1993 Ford Explorer Limited

1 Answer

The ac on my 1998 ford ranger only blows out the defrost vent and floor vent. How do I fix it?


Almost sounds like the actuators are inop. depending on which style you have, some are electrical motors and some are vacuum. These control the mode doors which move to deflect air to various vents.

Jul 03, 2012 | Ford Cars & Trucks

1 Answer

1999 tahoe wont blow air out dash vents


my issue at the moment is that the linkage (control arms) have come apart. it looks like there's a part missing from between the two control arms. there's a small electric motor with one arm and another arm that controls a flap somewhere that shifts the air flow between floor and up top. both of these control arms have a square hole in the ends and i don't see a way for them to be reconnected. so i'm assuming that there's a part missing.

Jun 30, 2012 | 1996 Chevrolet Tahoe

1 Answer

My air condition changers when you pull up hill it changer from the lower vents to the defrost vent


You don't indicate what year or model Ford you have but it sounds like you have a vacuum controlled system. When you climb a hill engine vacuum drops and the HVAC defaults to the defroster vents. If your system has a vacuum reservoir it may be leaking. If it doesn't you can add one. Older Fords used a metal can about the size of a quart. Older GM cars used a round plastic one. You might be able to find a used on. They are easy to install. Just cut the vacuum line going to the HVAC system. Install a "T". Connect the 3rd nipple on the "T" to the reservoir and you should be good to go.

Apr 17, 2011 | Ford Explorer Sport Cars & Trucks

Not finding what you are looking for?
1997 Ford Econoline Logo

100 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...