1988 Chevy S-10 spherical vacumn ball?

  • 1988 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • 410,000 MILES
Thanks for giving me your opinion today..........

ok. much better description. that is a vacuum reservoir tank. the vacuum hose that goes to it should be coming from a one way check valve that has 3 hoses connected to it. the easiest way for me to describe where the vacuum hose is, look for the vacuum line that goes into the cab of truck(this controls the vacuum to the heater doors) the vacuum reservoir should at some point be connected to this vacuum line. hope this helps

However, my truck does not have any vacumn hoses going to the heater, it only has stiff wire to control the heater doors, you must be thinking of a lot newer model. I also paid for a years subscription for the on-line auto manual, but it also does not tell me much there either. One fellow in my home town tells me that he thinks its something to do with the vacumn that the brakes take away from the engine when I apply the brakes. This could be true as when I apply the brakes, the engine seems to flutter a lot untill I release the brakes. If this is the case, then could you please tell me where I`m suppose to put the hoses onto. Thanks again.


Do you
have the same problem?
Saturday, March 1st, 2008 AT 9:50 PM

1 Reply




These are the vacuum diagrams for 1988 s-10 4 cyl...this ball is not for the brakes! If the brakes are acting up when you step on the pedal, test the check valve at the booster, vacuum source for brakes is from manifold...ALL doors on the heater plenum are operated by VACUUM!
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Sunday, March 2nd, 2008 AT 6:56 AM

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