Vacuum Leak

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01-20-2014, 08:54 PM

tatonka

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Vacuum Leak

Guys, I have a 91 ford f150 5.0 engine. engine idles about
1500 rpm. I think I found a vacuum leak at the diverter valve
behind the intake. would this cause the engine to idle high?

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01-21-2014, 02:43 PM

White Max

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Yes, a vacuum leak can cause a high idle.

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01-21-2014, 06:08 PM

tatonka

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that looks like a major job to change. if I take the smog pump off will that
fix the vacuum leak coming from the air diverter valve?

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01-21-2014, 06:14 PM

rla2005

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Quote:

Originally Posted by tatonka

that looks like a major job to change. if I take the smog pump off will that
fix the vacuum leak coming from the air diverter valve?

No it will not.

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