Van just clicks, so changed the starter, still won't start even w a jump, changed battery posts, all lights and radio works, got battery tested and it was low, tried to jump start but no connections. where does the ground wire connect to on the van, it is connected to the motor.
The ground should connect to the motor and the motor should connect to the body or chassis. Pour some water on the connection to the engine and the battery terminals. If it is a bad connection things should improve. If you jump start, the donor vehicle needs to be running at a fast idle.
SOURCE: gmc safari van cranks over, but will not fire up
I had the same problem with my 2000 GMC Safari two years ago....drove me CRAZY!
Sometimes it would start right up...other times it just would crank and not start.
It turned out to be a cracked coil....I found it by using a spray bottle with water in it, and "misting" the engine, at night....with the engine running. (On a night when it DID start!)
It took a while, but finally the hairline crack let in some water and the electrical short showed by a spark coming out of the coil.
I replaced the coil with a new one, and it has never "not started" since.
Evidently the coil cover gets brittle and develops small, hairline cracks due to heat from the engine.
Oh...by the way....I tested the coil it showed that it was fine!....but it took the "misting" at night...in the dark...to find the spark "leaking" out.
SOURCE: GMC Safari Van - Change spark plugs
i went under for driver side then i took off passenger side wheel you also have to remove two bolts that are holding dipstick tube in place it is easy to get them from the wheel well on passenger
SOURCE: starter runs constantly when u connect the battery
Check the wire from the battery at the starter there is a tab to keep it from spinning when you tighten the nut,it may be touching the other nut on the solenoid causing the starter to spin.You can also remove the wire on the solenoid that engages it then it should not spin.If it does it is a starter problem
SOURCE: how to change the sparks
take your tires off the front one side at a time and remove your splash skirt,you can change 2 from there and the other one by removing your cowoling from inside the van.
SOURCE: 97 gmc pickup, 5.7 eng, fuel pump not operating,
What you need to do is check you fuel pressure. Go to a local auto parts store and buy a fuel injection pressure tester. The pressure fitting is on the top of the motor its a 3/8 ish sized metal line and has a screw on fitting like a tire valve does. This line comes up from the back of the motor to the right of the distributor and goes down into the intake. Make sure to have a rag handy to catch the fuel seepage. After you connect the pressure tester turn the key on and off three times and read the gage you should have atleast 58 pounds of pressure. If you have 56 pounds it won't run because the fuel injectors are a poppit valve style and need atleast 58 pounds of pressure to operate.
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