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!POP! in Ranger intake manifold

TonyHi's Avatar
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03-12-03, 03:35 PM   #1  
!POP! in Ranger intake manifold

Hi Guys! I was starting my 1990 ranger with a 4.0 V6 (1st time in the morn) when I heard a pop under the hood. Looked under the hood and saw a vacumn line (BLOWN?) off of the fitting that delivers vacumn to the brakes. FIVE vac lines on that fitting. I have a rough idle and suspect an intake manifold vac leak. What do you think? And; where do all them vac lines go? Tony ........

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03-12-03, 05:23 PM   #2  
Have a look at the vehicle emission label under the hood. It should tell you what goes where.

If not, get a service manual with a vacuum diagram or get an Alldata.com subscription which will have the needed info.

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03-15-03, 06:38 PM   #3  

That pop out happened several times to my 94 Mazda B4000 V6 (twin to Ranger) when the truck was mis-started. I used spring clamps to keep the vaccum hoses stay put.
It seems work but there could be related problems. The truck also has spark knocks when it goes uphill. I am interested to see your findings.


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