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3 answers

Spray connections with wd 40. When the vaccumn increases you have found a leak. You can install a vaccumn guage to halp trouble shoot.

2006-11-11 21:01:50 · answer #1 · answered by ? 4 · 0 0

With the truck working and the vent on low pay attention for any hissing below the sprint. in case you are able to not pay attention something open the hood of the truck and pay attention there. countless circumstances it gets a vacuum leak close to the firewall the place the vacuum hose meets the hearth wall

2016-11-23 16:21:05 · answer #2 · answered by Anonymous · 0 0

Use water bottle with dish washing soap.Start the motor,and turn on heater.Spray with this water and soap.It will show you where the leak is.

2006-11-14 12:21:30 · answer #3 · answered by George K 6 · 0 0

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