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SportTrac Discussion
Electrical
AC fan speed varies when driving
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<blockquote data-quote="scott degroot" data-source="post: 861009" data-attributes="member: 66039"><p>You have a vacuum leak, either a broken vacuum line to the hvac system or a bad vacuum check valve. WHat happens is that under load the vacuum bleeds off and there is not enough vacuum left in the vacuum reservoir to hold the blend doors in their proper position.</p></blockquote><p></p>
[QUOTE="scott degroot, post: 861009, member: 66039"] You have a vacuum leak, either a broken vacuum line to the hvac system or a bad vacuum check valve. WHat happens is that under load the vacuum bleeds off and there is not enough vacuum left in the vacuum reservoir to hold the blend doors in their proper position. [/QUOTE]
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SportTrac Discussion
Electrical
AC fan speed varies when driving
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