Ford Excursion :: A/C Switch To Defrost Under Heavy Throttle?
Jul 21, 2015
Just recently under heavy throttle my a/c will stop coming through dash and goes to defrost??
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Jul 21, 2015
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Ford F-150 - 1997-2003 :: Switches To Defrost When Step On Throttle
When I have my a/c on, every time I step on the throttle it changes where the air comes out of the vents . Under normal power the air blows out the front vents, step on the throttle and it switches to defrost , let back off and it goes back to normal.?????
View 6 RepliesFord Ranger / B-Series :: AC Just Sends All The Air To Defrost Vents When Apply The Throttle
I have a different issue than the typical heat on max ac. Mine is actually cold, it just sends all the air to the defrost vents when i apply the throttle. Comes back to the dash vents when I let off the gas.
I know that it's vacuum lines or solenoid, I just wanted to see if any guess on which specific line to check or any other info since I do NOT have a gauge to measure the vac lines for pressure.
Ford 6.0L Power Stroke Diesel :: AC Blowing Through The Defrost When Switch To 4x4
Replaced the vacuum solenoid.. Thought that would fix the ac blowing threw the defrost when I switch to 4x4, but didn't fix the issue, 4x4 works great. There is another little diaphragm that has a vacuum line to it that opens and closes, could this be causing the air to go defrost? I'm going to go to a buddies house and test for leaks this Saturday, just trying to get a jump on it...
View 1 RepliesFord F-150 (2004-2008) :: Odd Screeching Sound Under Relatively Heavy Throttle - Driveshaft?
I have an F-150 Heritage 4.2L V6 Manual 4X4 and over the last few weeks have notice a couple of odd things. First I noted an odd screeching sound, similar to a rock caught in the break drum, but it seemed to be coming from under the cab/bed, not a tire. It only seemed to show up under relatively heavy throttle, which I thought was odd. I went through a car wash with a good under carriage spray, and the sound went away.
A few days later it snowed and the sound returned. I don't know that it's actually related...but that's how the weather went... Now, when I let off the throttle and the engine holds the truck back there is a "thump", and when I reapply the throttle, it thumps again. If I press the clutch in first, then release the throttle there is no thump; so I assume this is something with the drive shaft.
I climbed underneath and found that I do have some play in the shaft, I can twist it a tiny bit so I know that I have play in the shaft which (and I am NO mechanic) I assume is not normal. I can see the shaft turning all the way to where it goes into the back of the transmission so I assume the play is coming from the rear yoke?
I thought I could replace the yoke relatively cheaply but I keep stumbling across posts indicating that with this particular set up, I actually have to replace the whole drive shaft. What I could be looking at, and what my options are?
Passat (B6) :: Hard Jerk Around 4k Rpm With Heavy Throttle
I have a 07 20T and today when I went to pass someone on the highway I punched the throttle and the car rev'd up and it started to jerk really hard as if it was not catching the next gear. So I let off the gas and everything went back to normal. Under normal driving the car drives normal and fine, its only when you give it some hard throttle and when it hits high rpm's it jerks, it feels like the car wants to stall. I have 30k miles on it.
View 15 RepliesGolf/GTI VI :: Misfire On Cylinder 1 Under Heavy Throttle
Bad coil pack after 8k. Was getting a misfire on cyl 1 under heavy throttle so I swapped the coil with cyl 4 and the misfire is on cyl 4 now.
View 7 RepliesFord Super Duty (1999-2016) :: F350 - Black Smoke And Low Power / Code P1211 Under Heavy Throttle
I have a 99 350 sd 7.3 low power black smoke sets a p1211 under heavy throttle. Check icp on scanner under heavy throttle falls from 1900s to mid 1700s ipr duty cycle runs about 62% wanting to know if I am looking for a hpop problem or injector issue...
View 1 RepliesFord Excursion :: A/C Blows From Defrost?
Every time I turn my Ex off and start is again I have to turn my A/C completely off then hit the A/C and Recycle button to get air to blow out of the panel vents or it will automatically blow out of defrost vents no matter what setting it was on when I turned ignition off. Is there a blend door actuator/some sort of air diverter on these like my old Yukon XL had? On the Yukon the driver and passenger vents would blow hot and cold.
View 4 RepliesFord Excursion :: V10 - A/C Going To Defrost Under Load?
Well mine was. Checked all vac lines, 4wd was fine, tested with vac pump tested ok. So first I replaced the canister. Nope, actually happened more often. Pulled the 4wd solenoid that's mounted on the inner fender, rusted and split just above where the vac lines connect. I capped them and now my a/c is perfect, 4wd is out but for now I can live without 4wd.
View 3 RepliesFord Excursion :: 2003 V10 - Blows Out Defrost Only
Mile marker hubs on my rig. V10. Plugged 2 ports on what I thought was the vacuum pump pass side middle of the fender. The lines coming out of what I thought was the vacuum pump were molded together going into two separate ports. I plugged both ports. What did I do wrong and what should I plug?
View 3 RepliesFord Excursion :: Engine Produces 2k RPM And Goes Defrost?
Diagnostic routine. Anytime the vents are on and the engine produces 2k rpm or more it goes to defrost. ....Why and how to remedy?
View 6 RepliesFord Excursion :: AC Not Blowing Out Of Defrost Or Floor Sometimes
The front a/c on my ex on the highest blower motor speed blows out the vents like its on low, but I can hear the motor blowing at full speed. It's not blowing out of defrost or floor unless I switch it. On lower settings I can barely feel any air at all. Only does this rarely. Could it be my vacuum pump?
View 4 RepliesFord A/C :: 2002 Excursion - Air Blowing Through Defrost Only
I'm not sure if on my 2002 Excursion limited the air vents are controlled thru vacuum or electronically. Where to start. Where to even begin looking to correct this problem. I'd rather not have to pay the dealer prices unless it is something out of my league of fixing.
View 4 RepliesFord Excursion :: Heavy Steering And Sometimes Kicking
1-My Ex steering is very heavy and some times kicking, I don't have any fluid leaks and my steering shock looks nice and clean, I did check and lubricate the ball joints.
2- how did the big 3 wire upgrade in v10, I need some pictures for grounding wires locations like engine to body, battery to body, chassis to body. Because I got a new 300 amp alternator to juicing my truck stuff and to power up the 3000w power inverter.
3- The engine exhaust fumes is so strong making my eyes burning ← . What I did is new coils pack, spark plugs, air filter, fuel filter , cleaned the injectors , checked the exhaust for leaks, cleaned the throttle.
But it's no different, I had this problem sense Day1 .
Ford Excursion :: Stuck On Defrost Vacuum Leak
Ok, I have capped off the vacuum lines to the front hubs and replaced the vacuum solenoid on the passenger inner fender. Still stuck on defrost. I know there are several options from this point what would be the next step after what I have just recently done. Going away on a ski trip and would like to have it working properly before I go.
View 14 RepliesFord Excursion :: 2002 - A/C Blowing Air From Vents To Defrost?
My 02 V-10 Ex seems to be blowing Air from the front vents up to the Defrost unless it go through a series of events-- Hit Auto then forward Air then the fan has to be a 4 only. It will blow forward vents then go back and forth from theirr to the defrost. Also the Temp seems to be much hotter then it should.
Took a interstate trip this weekend though and it seems to blow much colder and do a little bit better staying in the front vents however still goes back and forth. Im in FL and its HOT!!!! The only thing I know is that its a vacuum system.. and that again its HOT in the truck as a daily driver.
Ford Excursion :: 2005 - AC Defaults To Defrost When Swap To 4 Hi
I noticed when i swap to 4 hi. The AC defaults to defrost. I have read this is a possible vacuum leak. Well after driving for about a mile the AC goes back to vents " while still in 4 hi" does this mean my hubs are sticking and finally engaging? Or still probably have a vacuum leak?
View 3 RepliesFord Excursion :: AC And Defrost / Vent Switching Back And Forth
I have to once and for all try to figure out what the heck is up with the AC and the defrost/vent switching back and forth. I have searched and searched and posted a few months back as well. But now that it's summer and 100 degrees out I've had a chance to test some more.
1 - I replaced both hoses going to the hubs up front.
2 - I am not sure how to test vacuum, but I did cap the hoses that lead to the hubs and still had the fluctuating back and forth
Looking for detail how to test for vacuum leak with a gauge directions ? What number is supposed to hold on the gauge and for how long etc...?
3 - It used to be that when I got to a high speed or RPM it would shift to defrost, but now I've noticed that once on the freeway going to work for instance and doing a constant 55-65 ( sub 2k rpm ) for about 20-25 minutes the vents hold fine. When I start to stop and go with higher RPM's it starts to 'break down' again. Could it be that there is a vacuum canister or pump ? I don't know ?? The diesels have a vac pump - do the V10's ? What can I check if there is no vacuum leak - what's next ?
Ford Excursion :: Rear Hatch Defrost Does Not Work
Weather is getting colder and I need defrost every morning. Rear defrost doesn't work, and I found this when I opened up the rear body panels
Driver Side
Passenger Side
I cleaned both sides on the loose contact with sandpaper, cleaned with alcohol, and then superglued back together. Will the superglue allow enough electrical contact for it to work? Is there a better adhesive or way to fix? I want it to fully cure/dry before I fire up. Hopefully in the morning my fix works.
Accent LC (2000-05) :: Cylinder 3 Misfire / Massive Hesitation Under Heavy Throttle
I've got a 2000 accent 1.5, and I keep getting a code for a cylinder 3 misfire, when I change the spark plugs, it runs great for about 50 miles or so, then back to square one again. I just changed the coil pack the other day and there doesn't seem to be much of a difference. It has massive hesitation under heavy throttle, and the check engine light begins to blink if it sits and idles for too long. I've scanned it multiple times and it's always been cylinder 3, so it's definitely set on that one... I'm about stumped on what this could be. Also, the previous owner said that after a hot day of driving, the ECU fuse under the hood will blow out, what could cause either one of these things?
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