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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

no 3 gear

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Old Nov 13, 2004 | 11:12 PM
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keke
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Question no 3 gear

85 F150 how to check transmission modulater 3speed
 
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Old Nov 14, 2004 | 07:33 AM
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Holmesuser01
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If you are getting vacuum at the modulator with the motor idling, replace the modulator. They are cheap and easy to install. I changed mine when it shifted quickly from first-to second-then third really fast. Saw instant results.

If you have no vacuum at the modulator, look for a damaged hose between the mod and the intake manifold. If you are not gettting vacuum at the manifold, you could have a plugged vacuum port.

Git 'er done.
 
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