Problems with 2000 Ford Ranger QuadCab
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Problems with 2000 Ford Ranger QuadCab
Hello All,
This is what's going on:
The heater defaualts to defrost. I checked all vacuum lines, canister, and replaced vacuum relays. There is no sign of vacuum leaks. Any ideas as to what to check next? The engine runs smooth. Could it be in the switch on the dash for 4x4? Seems that when the switch is turned the heater works fine for about two minutes.
Any ideas on this would be greatly apprecited.
Thanks
P.S. Sorry for posting in the wrong spot last time. I'm really new to this "forum" thing.
This is what's going on:
The heater defaualts to defrost. I checked all vacuum lines, canister, and replaced vacuum relays. There is no sign of vacuum leaks. Any ideas as to what to check next? The engine runs smooth. Could it be in the switch on the dash for 4x4? Seems that when the switch is turned the heater works fine for about two minutes.
Any ideas on this would be greatly apprecited.
Thanks
P.S. Sorry for posting in the wrong spot last time. I'm really new to this "forum" thing.
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New User
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The selctor could be anywhere, floor pannel etc and it will switch defrost when I accelerate. It will switch back when I put the truck into 4 wheel drive and pops back to defrost after about a minute and a half - 2 minutes. Seems problem might be electrical??
Post Fiend
Joined: Feb 2003
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From: Eastern WA
Since you've ruled out vacuum leaks, the reason the system is switching to defrost when you accelerate (results in numerically low manifold vacuum) is because the check valve has failed. Forget the cables as a year 2000 model has none.
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From: Durant, OK (SOSU)
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cowboy Billy 9 mile
it seems that you may be on to something. I don't see a check valve in the lines anywhere. could it be that it is in the vacuum reservoir tank? I hope not because it is in between the fender walls. What a place to put it. I think I will order a new one and try it before i tear the inside fender well out. Thank You for the great idea. I will start there. Bilco.
it seems that you may be on to something. I don't see a check valve in the lines anywhere. could it be that it is in the vacuum reservoir tank? I hope not because it is in between the fender walls. What a place to put it. I think I will order a new one and try it before i tear the inside fender well out. Thank You for the great idea. I will start there. Bilco.
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Post Fiend
Joined: Jan 2003
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From: Connecticut
Originally Posted by bilco
cowboy Billy 9 mile
it seems that you may be on to something. I don't see a check valve in the lines anywhere. could it be that it is in the vacuum reservoir tank? I hope not because it is in between the fender walls. What a place to put it.
it seems that you may be on to something. I don't see a check valve in the lines anywhere. could it be that it is in the vacuum reservoir tank? I hope not because it is in between the fender walls. What a place to put it.
FWIW, someone recently had a similar problem and it turned out to be the PVH solenoid was leaking.
