Question about 2002 GMC Savana

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Van will not start. It Cranks and the fuel pump

2002 GMC Savana Van will not start. It Cranks and the fuel pump sounds like it's running while being cranked. But it will not fully turn over to start.

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  • Colin May 11, 2010

    When you state will not fully turn over to start, does this mean "sluggish" turn over, if so battery is low, jumpstart. If engine cranks over at good speed then lots of diagnostics required ie is there plenty of fuel, is engine getting enough air, is the engine getting sufficient spark. These need to be eliminated in turn to correctly diagnose the fault.

  • ironmike13 a May 11, 2010

    does it turn over fast or does it miss fire

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  • GMC Master
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Wont turn over??sounds like the timing belt has broke and pistons hitting the valves

Posted on Nov 20, 2009

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Posted on Jan 02, 2017

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I HAVE A 1986 GMC VANDURA 3500 CARGO VAN,ALWAYS TURNS ON WITH NO PROBLEM,OK HERES THE THING.MY GAS METER WENT OUT RECENTLY SO I DROVE IT AROUND ALL WEEK BASICLY JUST TRYING TO EMPTY THE TANK SO I CAN FILL...


If the fuel level is very low and the van is not level it's not going to start even if the pump is good.
When you turn the key to on you should hear a fuel pump noise for 2 to 3 seconds if the key has been off for at least 10 seconds,and when cranking or the engine is running the pump runs because there's oil pressure sending power to the pump.
Have someone listen back at the tank.No Noise?then it might be time for a fuel pump.
Your fuel filter may be just ahead of the rear axle on the passenger side under the van.
But.....if your gas gauge went out and now your pump quit,maybe the wiring back at the tank is corroded?

Mar 31, 2017 | GMC V3500 Cars & Trucks

1 Answer

G.M.C. Savana 5.7 cranks Problem with the 1997 Savana G.M.C. Savana 5.7 cranks but will not start. Its getting spark and fuel but still does not start.. Ran fine yesterday. obd2 code came up as po102 map...


I was putting you in a thinking position.
Yes,if you disconnect the MAF-it will not start. Or if the computer has no input or control over airflow,as a result of a defective sensor.

Now, without your vehicle and some testing, I don't know if it is bad.
You suggested it wouldn't matter and would start.
Only replace it ,if you get it tested, and there is a problem. There is nothing you can do, and good luck finding a repair shop, that will do anything but replace it, and hope for the best,at your expense.

Sep 21, 2010 | 2000 GMC Savana

1 Answer

G.M.C. Savana 5.7 cranks but will not start. Its getting spark and fuel but still does not start.. Ran fine yesterday. obd2 code came up as po102 map sensor. I don't think this is the problem. Van should...


Let go with your theory

You get a PO102 MAF code.( Mass Air Flow Sensor)
Lets say the sensor is somehow not working correctly,and as you say,it has spark and fuel

I would guess, you think, the engine would be happy, having no idea how much air it is getting. Kind off like the computer will somehow overlook it is controlling an air pump in the first place.

Sep 21, 2010 | 1997 GMC Savana

1 Answer

97 GMC Safari. It is taking a long time to start. cranks and cranks... about the 3rd or 4th attempt, it will start. This problem just happenend.. One minute it started on the turn of the key... then, this...


Replace the FUEL PUMP RELAY. Its located in the under hood relay center. This relay primes the pump with the key on, about 2 seconds, then the pump will not run until the engine has oil pressure, then the fuel pump is energized.

May 14, 2010 | 1997 GMC Safari

2 Answers

1997 GMC Savana 5.7 L conversion van. Cranks but wont start


look under the hood on the right side where your brake fluid is..There is a black box to the farest right of the brake fluid. take off the lid to this box were you will find fuses..Reach in and feel the fuses to see if any are loose.The largest fuses in the front, push down on those and then try to start it up..Take them out look at them make sure there ok if this dont work..they the one bad might need to be replaced..

Nov 17, 2009 | GMC Savanna Cars & Trucks

1 Answer

My 1999 gmc savana van turns over but does not


could be a bad fuel pump, or fuel pump relay. they are having problems(a lot) with the ethanol in the gas on GM products.Fuel pumps sales are through the roof at parts house on GM's. Have a pressure check on your fuel system. That is probably it. Add a can of Seafoam to your fuel every 3000 miles to alleviate this problem.

Aug 28, 2009 | 1999 GMC Savana

1 Answer

Van has to sit overnight after long idle, in order to start.


See if the vents on your gas cap is clogged up. The gas cap could cause the fuel tank not to vent properly, causing fuel issues

Apr 26, 2009 | 1999 GMC Savana

1 Answer

Gmc savana van will stop running while driving or start sputterin


It could be a clogged fuel filter or a bad fuel pump. Also try replacing the spark plugs and spark plug wires and having the timing checked. Good luck.

Mar 11, 2009 | 1998 GMC Savana

2 Answers

1997 GMC Savana - Car "stutters" when on incline or warmed up


their are a multitude of reasons the majority or the usual suspects are - if any codes have read and most auto stores offer this service for free --needs tune up ---egr valve carboned or failing --fuel pump /filter failing or partial clogging --catylic converter failing or clogging --injectors- tbi needs replacement or rebuild-- bad fuel any of these can cause such problems and not set off the check engine light

Apr 16, 2017 | 2004 GMC Savana

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