Safari won't start

2000 GMC SAFARI
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SDH54
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My troubles started with driveability and hard starting problems. The vehicle now will not start unless I dump a little fuel down the throttle body. The only trouble code I get is P1351. The mitchell manual takes you through the ign. system to deal with this code. I have been going in circles chasing this code for some time now.
However! I found from another source that this code will also set if engine rpms are below 250.
I now suspect that cranking the heck out of the motor is causing the code. The real clue to my problem is the dumping a little fuel down the throttle body.
I'm not getting any gas.
The injector harness will light up a NOID test light for all cyls. I have 60 psi fuel pressure. Fuel just kind of dribbles out of the disconnected fuel return line with the pump running.
I suspect the fuel pressure regulator but the mitchell manual requires a set of fuel shutoff adapters (!!$250.00!!) to test it.
At this point it seems that if I had the adapters the test would indicate either the regulator or grounded injectors are my problem.
Any ideas on a work around or alternative pressure regulator test?
Thanks,
Steve
Jan 7, 2009 at 12:47 PM
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STRAILER
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Try to remove the feed line off the front of the fuel filter, test the amount of fuel being pumped out when you crank the engine over. Let me know how much comes out. Also you mentioned it lights the noid light, but does it flash when cranking the engine?

Please check out the guide it will help.

https://www.2carpros.com/articles/car-cranks-but-wont-start

Jan 7, 2009 at 9:04 PM
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SDH54
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Ken, The pump delivers about 1 gallon per minute (it was replaced last summer).
Thanks again, Steve
Jan 8, 2009 at 7:56 AM
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STRAILER
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Hi Steve, lets remove all electrical connectors from the fuel injectors. Perform a Ohms test across the terminals, replace any injector that's reading is greatly different from the others.
Jan 8, 2009 at 10:36 PM
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SDH54
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Ken, All 6 injectors test at 11.5 to 11.8 ohms. This doesn't seem like enough variation to warrant replacement.
Jan 10, 2009 at 1:07 PM
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STRAILER
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Hi, yep, those injector are probably ok. With the key in the on position test the injector connector, one side should have power.
Jan 10, 2009 at 6:11 PM
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SDH54
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Yes Ken, as I said initially, I can light a NOID light at all 6 positions on the harness . I believe this indicates battery voltage on one side as well as proper function from the VCM.
To recap, the engine will run as long as I dump fuel down the throttle body, so, I have spark. Your suggestions have shown there is fuel delivery of 60 psi @ 1gpm, the injectors seem good, the VCM is doing its' job. Is there any other possibility besides the pressure regulator?
Jan 10, 2009 at 10:11 PM
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STRAILER
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The trouble code you mentioned is for the crankshaft position sensor. If that sensor intermitted fails it could cause the condition you are describing. I have replaced many of these sensors. Please check it out and get back to me.
Jan 13, 2009 at 12:49 PM
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SDH54
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Hello Ken, The crank sensor is new, as is the coil, ign module, hall sensor in the distributor, and VCM (passlock code relearned). Also since my problem started I went ahead and threw in cap, rotor, wires and plugs since they were about due anyway. (I work for an auto parts company and get a heck of a discount).
It really seems as if the ign system is good as well as the electronic side of the fuel system.
I've been reading a lot about the many problems with the GM CSFI fuel system and the popular conversion to MFI. I'm considering this as a real possibility. Whaddya think?
Thanks for your patience,
Steve
Jan 13, 2009 at 1:58 PM
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STRAILER
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Hi Steve, have we checked for spark at the plug wire? please follow this video

https://www.2carpros.com/how_to/how_to_test_an_ignition_system.htm


let me know
Jan 13, 2009 at 8:56 PM
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RIDDLER69
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I have replaced the coil, the cam postion senser, the pick module, spark plugs, and egnition module.
Oct 20, 2018 at 4:42 PM (Merged)
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WRENCHTECH
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The cam sensor and the pick up coil are the same part.
I assume you have no spark. It would be nice to know if you have injector pulse but it's very hard to check on that system. I would suspect a Crank sensor, assuming you have good fuel pressure.
Oct 20, 2018 at 4:42 PM (Merged)
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RIDDLER69
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We all so replaced the crank sensor. It is getting some spark to the plugs. I have tryed spraying starting fluid in the air filter compartment it still will not start.
Oct 20, 2018 at 4:42 PM (Merged)
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WRENCHTECH
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Time to start from scratch. Take a complete compression test and fuel pressure test.
Oct 20, 2018 at 4:42 PM (Merged)
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LJOE RICE
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repeated trouble starting our van, it cranks but does not
turn over right away, it may take 5 tries before it starts,
it gets worse as the weather gets colder, very bad in winter
Oct 20, 2018 at 4:42 PM (Merged)
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RASMATAZ
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Cranks but no start condition-do below to determine whether it's fuel or spark issue:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.
Oct 20, 2018 at 4:42 PM (Merged)
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MR.ANTHONY
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when i got the van it was mistin very bad. i could hear it when i press the gas. so, i know that i need a tune up. the van stopped running, it started and i went to work. i turned the van off and now it wont start. i put on a new fuel filter and it will turn over but wont start. i was able to push the gas four times before it died. do i need a fuel pump or should i check something else.
Oct 20, 2018 at 4:42 PM (Merged)
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RASMATAZ
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Did you have a check engine light come on or has flashed prior to this problem?

Cranks but no start condition:

Fuel and Spark:
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.
Oct 20, 2018 at 4:42 PM (Merged)
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XAVIER5150
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I have a 2000 Safari with 148000 miles on it. Had problem with it running and found the rotor inside distributer was bad. Gave it a full tune up and it ran fine.....for about 2 hours. It was giving the same symptoms as before the tune up, but checked and all was ok with the newly installed parts. Saw a post on this site almost identical to what I have been experiencing. The fix there was to replace the computer. I did that with a used one and now it will not run at all. Turns over just fine but wont run. Also it seems like the security system is going off every time I attempt to start it. Is there something im missing?
Oct 20, 2018 at 4:42 PM (Merged)
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DAVID421
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First you need to get the computor programed to your vehicle information. Second you need to reprogram the security system by leaving the ignition on untill the security light goes off than turn the key off for 5 seconds and do it again 2 more times.
Oct 20, 2018 at 4:42 PM (Merged)
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SAFARITROUBLE
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Engine Mechanical problem
2000 GMC Safari 6 cyl Two Wheel Drive Automatic

We purchased a Safari for our business and everything went well for a month or two. Then one day, it just decided not to crank. After running diagnostics on it for a number of hours, we determined that the fuel pump was the source of our troubles. We changed the fuel pump and it cranked right up. And then died. Since then it has, at times, refused to crank, cranked without a problem, died while driving down the road at 45 mph and just about everything in between. Normally after it dies on us, it won't crank again until we disconnect the battery for a few minutes. Sometimes, it won't crank even then.

Does anyone have an idea what the problem might be?

I'm just about ready to stick a piece of dynamite up the tailpipe but I thought I'd ask here before I do.
Oct 20, 2018 at 4:42 PM (Merged)
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RASMATAZ
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Check the fuel pressure with a fuel pressure gauge and come back with the readings.Meanwhile,check and test the fuel pump relay and the oil pressure sending unit.
Oct 20, 2018 at 4:42 PM (Merged)
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MIKED48088
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I replaced battery, wires, plugs, rotor, dist cap, pcv valve, crank positioning sensor and it runs fine until it sits out after a night of rain it wont start?
Oct 20, 2018 at 4:42 PM (Merged)
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RHALL77
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did you check for fuel pressure and no spark when this happends?
Oct 20, 2018 at 4:42 PM (Merged)
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MIKED48088
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[quote:93e278232f="rhall77"]did you check for fuel pressure and no spark when this happends?[/quote:93e278232f]
Oct 20, 2018 at 4:42 PM (Merged)
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KONSHEYN
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Same problem with my Safari 99. Please post here what was the problem
Oct 20, 2018 at 4:42 PM (Merged)
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STEVENRUB
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will crank and try to start but will not after rain ive replaced all basics dist wires plugs even did fuel pump and such ran great 2 days we had rain last evening 9/4/11 and no start today
Oct 20, 2018 at 4:42 PM (Merged)
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MHPAUTOS
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Have you had any work done on the car recently that involved unplugging any electrical components in the engine bay?
Oct 20, 2018 at 4:42 PM (Merged)
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DEAN ANDREJCZAK
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This vehicle has never gave me a problem. I had drove a short 2mile trip went home and within an hout I had went back out, turned the key and it just cranks and will not turn over. The fuel pump is working. What would be the next possibilities?
Oct 20, 2018 at 4:42 PM (Merged)
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BILLYMAC
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hi fuel pump is working but you need to know how much fuel pressure you have and next do you have spark,?? let me know and i can help more. billymac
Oct 20, 2018 at 4:42 PM (Merged)
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SAWSAFARI
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I put van in revers went 20 ft. and it just died instantly tried. to start it. but will not start. I noticed the security. light on..

I tried unhooking battery. to reset but stiil not starting. I got a new key from dealship because old one is really worn. Still not starting. Van has 8 gal of fuel. I desperately new van for work can you please advise.... thanks
Oct 20, 2018 at 4:42 PM (Merged)
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HMAC300
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see pic for resetting security.
Image (Click to enlarge)
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Oct 20, 2018 at 4:42 PM (Merged)
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SOLEDA RAMOS
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Other Category problem
2000 GMC Safari 6 cyl Wheel Drive Type unknown 200000 miles
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would not start,so I put a charger on the battery It started. Tryed again later in day would not start. Charger does not help this time. It sounds like it want to turn over.
Oct 20, 2018 at 4:42 PM (Merged)
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BLACKOP555
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will it crank or does it click?
Oct 20, 2018 at 4:42 PM (Merged)
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JROC_80
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Change your Dis cap and rotor. 99% sure that will fix it, if not its your fuel pump.
Oct 20, 2018 at 4:42 PM (Merged)
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MARK STEVENSON
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I took the kids to school and no problems. Three hours later and it wont start. It seems like its not getting fuel
Oct 20, 2018 at 4:42 PM (Merged)
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SATURNTECH9
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Is the security light on solid or flashing?
Oct 20, 2018 at 4:42 PM (Merged)
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MARK STEVENSON
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flashing at first, then it turns off, My check engine light just now turned on... what do you think it might be
Oct 20, 2018 at 4:42 PM (Merged)
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SATURNTECH9
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If the engine inst running the check engine light should be on. It sounds like the fuel pump has gone out. Can we do a pressure test?

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please let us know what you find.

Cheers
Oct 20, 2018 at 4:42 PM (Merged)
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MARK STEVENSON
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I just replaced the fuel filter and I've never seen fuel so dark. It was very hard to blow through the filter. How do I get my vehicle running now.
Oct 20, 2018 at 4:43 PM (Merged)
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CADIEMAN
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does it try to start with spray?
Oct 20, 2018 at 4:43 PM (Merged)