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post #1 of 8 (permalink) Old 06-12-09, 09:20 AM Thread Starter
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1986 Ford e150

Having a problem with my van I believe its a vacuum issue but not familiar with the vacuum system. So I would like ask you all if ya got any ideas.
Here is the problem its a 302fi engine and I got stalling, loss of brake power, and shifting problems I know there has got to be a central part where all the vacuum starts. Any Ideas ??? ty
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post #2 of 8 (permalink) Old 06-12-09, 10:08 AM
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Re: 1986 Ford e150

I would start at the intake manifold and trace from there. If it's that big of a leak where you would lose the power brakes, you ought to be able to easily hear it sucking.

The vacuum originates from the intake.
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post #3 of 8 (permalink) Old 06-14-09, 08:32 AM
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Re: 1986 Ford e150

There should be a vacuum line junction around the brake booster as well. As jwko mentioned, providing the engine/exhaust isn't too loud, you should be able to hear a 'hiss' sound from a broken line.

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post #4 of 8 (permalink) Old 06-14-09, 08:43 PM Thread Starter
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Re: 1986 Ford e150

I dont really hear a hissing sound but there is a round unit with hoses and if I remove one the vehicle seems to run better could this round unit be my problem ? or is it pretty much safe and one of the hoses is not sucking...not sure first time I have ever messed with vacuum..
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post #5 of 8 (permalink) Old 06-15-09, 04:54 PM
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Re: 1986 Ford e150

Round unit - I believe you speak of the brake booster? I've never seen under the hood of an '86....

'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!
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post #6 of 8 (permalink) Old 06-15-09, 07:00 PM Thread Starter
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Re: 1986 Ford e150

Not the Brake booster its a plastic round unit that has 5 vacuum lines attached to it one in back two upfront one on the left side and one underneath its like a master vacuum point.
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post #7 of 8 (permalink) Old 06-15-09, 07:43 PM
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Re: 1986 Ford e150

Perhaps upgrading to a Dyson might help, as it never loses suction? Had to say it! Perhaps someone else will chime in to give you a hand.

'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!
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post #8 of 8 (permalink) Old 06-15-09, 10:44 PM
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Re: 1986 Ford e150

Quote:
Perhaps upgrading to a Dyson might help, as it never loses suction?
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