location of vacuum control valve 2002 explorer 4.0

30

Asked by Jan 31, 2015 at 01:08 PM about the 2002 Ford Explorer XLT 4WD

Question type: Maintenance & Repair

5 Answers

16,550

What problem are you having? Is the heater not working?

2 out of 2 people think this is helpful.
30

I have heat but not to the floor. I do get air flow through the vents. Also going up a hill the heat will default to the defroster then back to the vents once I level out. I was advised to change the vacuum control valve but I cannot find it under the hood.

16,550

The problem could be in the front heater/ac control assembly (the knobs) Remove the dashboard center bezel. Remove the assembly. You should notice the blend door vacuum harness. If you are lucky the problem is there. Check for leaks. Loosing vacuum under load is a sign of a leak. The blend door may be spring loaded so it returns to it's default position when no vacuum is present. You should have the same problem when the vehicle is running while in park and you race the engine.

30

Can you help with the location of the vacuum control valve.

3 out of 3 people think this is helpful.
16,550

The system vacuum, and diversion of air when accelerating, is probably caused by a fault in the vacuum tank (reservoir) or the accompanying check valve. Most times they are located on the passenger side of the engine compartment but could also be inside the fender well. Locate the vacuum line entering the cabin through the rear firewall, it is usually black. Trace it in the other direction and see where it connects. It should connect to the tank/reservoir which could look like a ball or something to hold vacuum. Check that the tank is holding vacuum and the check valve is operational.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Explorer

Looking for a Used Explorer in your area?

CarGurus has 73,800 nationwide Explorer listings starting at $750.

ZIP:

Search Ford Explorer Questions

Ford Explorer Experts

#1 OJ
OJ
Reputation 9,350
#2 Tom Demyan
Tom Demyan
Reputation 3,720
#3 tennisshoes
tennisshoes
Reputation 2,130
View All

Related Models For Sale

Used Ford Expedition
453 Great Deals out of 24,893 listings starting at $1,999
Used Jeep Grand Cherokee
888 Great Deals out of 69,215 listings starting at $1,300
Used Chevrolet Tahoe
808 Great Deals out of 28,674 listings starting at $1,500
Used Ford F-150
2,880 Great Deals out of 212,656 listings starting at $1,000
Used Dodge Durango
330 Great Deals out of 24,233 listings starting at $1,500
Used Ford Escape
1,213 Great Deals out of 90,427 listings starting at $1,295
Used Toyota Highlander
520 Great Deals out of 25,542 listings starting at $2,100
Used Honda Pilot
479 Great Deals out of 19,836 listings starting at $950
Used Toyota 4Runner
328 Great Deals out of 20,882 listings starting at $1,990
Used Nissan Pathfinder
407 Great Deals out of 25,072 listings starting at $999
Used GMC Yukon
550 Great Deals out of 17,369 listings starting at $1,995
Used Ford Explorer Sport
293 listings starting at $695

Used Cars For Sale

2016 Ford Explorer XLT 4WD For Sale
36 Great Deals out of 1,026 listings starting at $23,970
2015 Ford Explorer XLT 4WD For Sale
47 Great Deals out of 1,094 listings starting at $19,950
2014 Ford Explorer XLT 4WD For Sale
112 Great Deals out of 2,113 listings starting at $14,995
2013 Ford Explorer XLT 4WD For Sale
39 Great Deals out of 1,209 listings starting at $9,995