Ford Excursion :: Air Flow Diverts To The Defrosters Upon Acceleration
Aug 13, 2012
I have been having recent A/C problems with the climate control in the EX. Upon acceleration the air flow diverts to the defrosters and then when you reach the top of the hill for example the A/C goes back to the vents. I think its possibly a vacuum problem so I looked under the dash and found a ribbed white plastic hose that looked like it came detached. The end of it has a back elbow piece on it with a rectangular tab that looks like it slides or snaps into a slot to secure it. Just wondering if this could be part of the issue or just info on where to reconnect it..
2003 Ex 10 cyl eddie bauer....
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I have a 2002 e350 box truck and the ac only blows through the defrosters I live in FL and it is hot!!! We need to know where the ac control gets it's vacuum from.
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Hearing loud blowing air noise coming from under dashboard/pedal area during acceleration...also turbo power loss...no codes and brakes work fine...
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I have a '98 Ford F-150 XLT, 2WD, Short bed, Ext. cab, 4.6L, automatic trans. with 65,000 orig. miles. I bought this truck new. When I have the A/C or heater or just outside air coming in through the dash or floor vents, the air will switch to coming out of the defrosters when I accelerate and then the air will return to it's normal position when I let up on the gas. Is this caused by a bad vacuum check valve and if so where is it located and what does it look like??
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I just had the 30,000 mile service at a dealership, replaced a leaking water pump, front and rear brakes. The car has just 30k miles on it so it hasn't needed anything major despite being 10 years old. Once I got it back the front windows and windshield are fogging up. It doesn't seem to matter if the car just started or has been going for a while. We have had temperature changes and humidity changes in the weather, neither makes a difference. I have to drive with the windshield defrost on all the time. The dealer said it isn't anything they did, but it started immediately after I got it back. Is it possible that they knocked something and broke it?
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This has happened now for the 4th time.
Driving along at between 40-50, have been on the road for 20 min to an hour each time and it goes from normal acceleration to struggling to accelerate at all.
Current remedy is to pull over, turn the car off, raise the hood, look at it, close the hood, restart the X and go along my merry way like nothing was the matter.
Each of the other times it was while I was driving but this time was with my daughter and she was not prepared for this situation.
2001 Limited, 4x4, 7.3, Injen Cold Air Intake, 4" Banks exhaust.
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Unlike Ap24, who has a post/thread about his CONSTANT noise under acceleration, mine is only happening once. For instance say I'm sitting at a stop light, and start accelerating, it's almost like the body shifts backwards. When I come to a stop and jab the brakes a little, its like it shifts forward. My dad seems to think it is the U joint.. but i'm not convinced as it does it on deceleration.
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Ok - I admit, I don't have a good description of what's going on, but it's not normal. When I accelerate slowly, or go up a hill, I'm hearing a "rattling" sort of noise that did not used to be there. I have heard it also when slowly decelerating.
I need to crawl under and look, but my big concern is I'm about to go on a 2000 mile trip with a small horse trailer. Could this be a festering major engine, transmission, or otherwise problem?
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2001 v10 ... I have a thumping noise under acceleration... also hear it if brake torquing.. I do not hear the sound if in park or neutral...while riding down road the sound goes away when you let of the gas. Torque converter has been replaced.... exhaust manifold bolts are ok too. Been to 3 places and no one can seem to pin point it or no where to begin...
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Noise on acceleration, sounds like a miss but engine feels good and no check engine light, eventually goes away, not there under a load either, idk totally stumped.
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So, my "new to me" 04 Excursion makes a belt chirping sound for a second with hard acceleration, usually 2nd gear, not always, but should I be concerned, I can't tell if it's the transmission, it does NOT appear to be slipping. I googled the scenario and people are mentioning a tensioner or belt that should be replaced.
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V-10 getting a weird hesitation on acceleration and rough, sporadic idle. Fuel filter is brand new, spark plugs only have 8000 miles on them. If im just cruising and give it just a little gas it gets real rough and wont smooth out unless I give it more gas. What else could it be? Coil packs?
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Ok have and 2001 excursion v10 auto the make good heat but when you start to like climb a hill it alternates between the floor and defrost then when you knoll the hill it goes back to the vent heat. I guessing a vacuum problem.
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Ok, so I just drove from Pgh, PA to San Antonio, TX..... truck ran great, and before i left i replaced the steering box, tie rod ends, shocks, added dual steering stabilizers, and did a tranny flush as well as oil change.
Here are the issues that I cant figure out, anytime i turn the wheel, there is a squealing, it is NOT the power steering, when we did all the upgrades we re-greased the ball joints and temporarily stopped the squealing. So should I just replace the ball joints, and if so, should I replace anything else while I'm doing that?
The next issue is when i drive, sometimes when I accelerate slightly it sounds like something is going wrong with the engine, like a vibration or humming, maybe a slight tapping, i cant seem to figure it out. no engine lights come on or anything, but it scares me and I need this vehicle for a while so I need to make sure i keep up on the maintenance.
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Well, I have been through the tech folder and all over the forum reading but cant seem to come up with a good first step. When i accelerate the truck shakes, by the sound it seems that its missing a cylinder. I guess it could also be the motor mounts. Besides replacing the plugs and coils, is there something else that could remedy a misfires or dead cylinder?
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I have an issue with something when I stop. When I apply the brakes and come to a complete stop, right when the forward motion is completely stopped the ex kind of rocks back on the shocks. When that happens the ex jerks just a little. Kind of like if the brakes were sticking to the rotor, or the shocks are sticking. Then when I start to accelerate it jerks again. How can I tell if the brake hoses are bad, calipers are bad, or if it's the caliper slide pins, or if the shocks are bad?
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2001 Ex 7.3 4x4 with 4" lift (6" with 37" Pro Comp tires)
All new front end steering components.
All new Shocks (bilstein)
All tires properly inflated to same PSI
All new brake rotors, calipers, caliper mounts, and pads.
When under hard acceleration the vehicle pulls to the left and I have to compensate by steering to the right. Under deceleration the vehicle pulls to the right and I have to compensate by steering to the left.
I am about to change all four brake lines to Braided Stainless Steel lines, replace all leaf spring bushings with polyurethane, and install a rear anti-sway bar. I'm going through this methodically enough or am I just building a brand new truck one part at a time?
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Water won't flow through lines for the heat to reach the back of the van. Have checked everything that could be blocking the water flow.
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I have a 2005 F250 with an intermittent AC problem. I had noticed over the past year that I only had high or low fan when adjusting my AC. Recently my AC has intermittently just not started blowing any air when I turn it on. When this occurs, I can put the fan on high and hear the clutch engage, however no air flow comes from the vents. I did some searching around and didn't find an answer. I was curious, where I might be best to start troubleshooting.
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1997 Ford F150. 6cyl, 4.2L 138K. Have CEL on and code reads: "P401 - EGR Flow insufficient". I replaced the EGR valve and checked the ports leading into them and they seem clean. There is one additional component called "EGR feedback sensor" which I really don't want to replace unless I can determine that this is faulty.
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I have a 1996 Ford Aerostar 3L. The Air Vents in the cabin are not flowing any air, whether on cold/hot/vent/defrost etc. I can hear it click on but no air flow. I used to have the same problems as some previous posts where the air would only flow in the dash or in the floor but now no air at all. Fuses are all good.
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