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How do I test the mass air flow device on a '99 GMC Surburban 5.7

I need to the test the mass air flow device on a '99 GMC surburban 5.7 liter votex, 1500, 4x4, with VIN: R. How do I do this with a multi-meter?


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Posted on Jan 02, 2017

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SOURCE: belt diagram 2004 5.7 liter engine dodge ram 1500 1/2 ton 4x4

click on this link, and scroll down to 5.7L

Posted on Dec 22, 2008

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SOURCE: wont start justs cranks has fuel&spark 99 surburban

check your 10amp ecm fuse

Posted on Feb 22, 2009

  • 54 Answers

SOURCE: need drive belt diagram for 1996 gmc surburban

usually there is a diagram under the hood on the radiator core suport if not any napa that has michel can pull you one up on the computer

Posted on Mar 19, 2009

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SOURCE: 2000 chevy surburban 1500 will crank but no start. waited one day

replace fuel filter first then test fuel pump with a rented fuel pump tester regulator test pressure while running then pull hose on the fuel pressure regulator see if the pressure goes up if it does then it does not need replacing you will need to replace then fuel pump and fuel sock, and if you ran it lower than 1/4 tank you may have over heated the pump.

Posted on Aug 19, 2009

  • 51 Answers

SOURCE: need to try to identify transmission from vin numer

Vin decoder available at If that doesn't provide the info, then the members there can help you figure it out with nothing more than a photo or description of the truck.

If it's an 80's Dodge with an auto trans, then it is either a 727 (3 spd) or 518 (3 spd w/OD)'ll know it's OD because there should be a button on the dash for it.

Posted on Sep 22, 2009

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Service engine light

Good Day,

Code P0102 indicates MAF(Mass Air Flow) sensor circuit, low frequency detected

Code P0300 indicates Random Cylider miss fire, meaning missfire in more than one cylinder

The misfire could be a result of the mas air flow sensor being faulty.

Hope this helps for now

Let me know what size motor and if it's 2wd or 4wd and I can get detailed instructions for replacing

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