1998 Pontiac Grand Am round metallic pump like thing

1998 PONTIAC GRAND AM
123,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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BYRDY101
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  • 6 POSTS
I just need to know what this round metallic pump looking thing is that is inserted into the front of the block and has really small white hoses that are plugged into that branch off 2 ways and one goes to the top of the block right to the left of the throttle body onto something that looks like a distributor almost. I just need to know what it is and what it does and if it would make my car jolt every now and then while driving......
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Mar 24, 2014 at 3:50 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
if you are talking about the black and white roundthing it is a one way valve for a vacuum line and no it own't make your car jolt. scan for codes and check fuelpressure with a gauge first. autoparts rent it.
Mar 24, 2014 at 11:13 PM
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BYRDY101
  • MEMBER
  • 6 POSTS
yes that's what was talking about, thank you very much for the info, I replaced it with a part from the junk yard but still to no avail no difference. so that's why I posted here, thanks so much
Mar 25, 2014 at 8:45 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
well you should really scan for codes and check fuelpresure first autoparts rent the gauge. also try cleaning your throttle plate on both sides and iac hole with choke cleaner and check for a vacuum leak as well.
Mar 25, 2014 at 8:50 AM
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