Dash vents do not change positions. 2000 Dakota

40

Asked by Jun 06, 2015 at 05:15 PM about the 2000 Dodge Dakota 2 Dr 4WD Extended Cab SB

Question type: Maintenance & Repair

Plenty of air flow, but only out of the defrost vents regardless of the switch setting.

7 Answers

59,165

Sounds like the system has lost vacuum. Check for a disconnected vacuum hose running from the intake manifold back through the firewall into the passenger's compartment. When the system loses vacuum it defaults to defrost for safety reasons. HTH. -Jim

1 out of 1 people think this is helpful.
40

Thanks Jim. I'll get busy looking, now that I have some direction.

1 out of 1 people think this is helpful.
59,165

You're welcome. Glad to help. -Jim

40

I found a small, black plastic vacuum line that was not connected, but definitely had vacuum. Hanging loose on a tee from a larger vacuum line, next to the engine side of the firewall. Need to find it on the inside. Is this were I have to remove the glove box and keep digging?

2 out of 2 people think this is helpful.
59,165

Yes. But it appears that it's disconnected on the engine side. Some systems use a vacuum reserve tank. Since you have vacuum on the hose let's assume that all is well under the dash. The vacuum reserve tank will look like a black plastic ball or black plastic box in the engine compartment. Check the vacuum hose routing diagram on the emissions decal that's under the hood. Look for a vacuum line marked "a/c". That should tell you where in the engine compartment to look. HTH. -Jim

1 out of 1 people think this is helpful.
40

The tee in the above picture actually goes thru the firewall directly below the 2 heater hoses. Fortunately, it broke(or was chewed thru) and left about a 1" stub that I was able to slice the 2 pieces back together using a small rubber vacuum line. Works great. I'll do a better fix later, if it breaks again. Jim, I wish you would let me pay you. Thank you so very much. Ray

1 out of 1 people think this is helpful.
59,165

That's awesome, Ray! Very glad you have it fixed! Thanks for letting us know. Lol, the satisfaction of helping you get it fixed is payment enough. Enjoy. -Jim

1 out of 1 people think this is helpful.

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