GMC Safari - Answered Questions & Fixed Issues

Question edited for a lot more clarity. Question moved to model category. This says it doesn't have one. https://www.justanswer.com/gm/4n355-crank-position-sensor-located-95-gmc-safari-4-3.html https://www.google.com/search?q=1994+GMC+Safari.+Crankshaft+Position+Sensor+location ..

We're is the fuse box for a 1993 safari van

the lost now glove box user guide on all cars cover all that. so if lost get it google finds them all so do so some are even free. if you googled. 1993 is paper only guide. one is under hood one is under dash see page 306, here, the photos are crude scans of 30 year old old booklet so be happy some poor dude scanned it. it is all there and can be downloaded free 100% free. and best place of all. https://www.manualslib.com/manual/231732/Gmc-1993-Safari.html?page=306#manual USA car one fuse box is just to the left of steering column at toes has huge black cover over it ,day1 new car. that simply pulls off and the fuse panels is there. under dash left USA LHD CARS

Info in the link and in general in the videos https://www.google.com/search?q=1991+GMC+Safari.+compression+test

Sounds like throttle body and/or its components,"IAC motor-IdleAirControl motor, TPS-ThrottlePositionSensor. Throttle body/Carb cleaner and SeaFoam @the brake booster.

Could be two problems,bad switch driver door[blinking],could be four way switch[clicking].

This just happened to my Dad's 1998 GMC Safari... Firstly... Check the hard vacuum line as previously noted by others. If that's ok, then take off the intake pipe and spray brake clean into the throttle body while trying to crank it. If it starts.. then you have a fuel related issue, if it doesn't start then you have an electrical related issue. Our van did not start after trying to use brake clean. Take off the console inside the vehicle's cab and get at the distributor. Usually people noted that the ICM (ignition control module, inside the distributor) was the main issue here, but on our van, the distributor and wires looked brand new so it was probably recently changed (we got this van 5 months ago), so I assumed the spark plugs were also changed at the same time. We unplugged the connection from the coil to the distributor, tried to crank it, and no spark was being generated, boom, got a new coil and starts up fine. Just takes a bit of trial and error.

Check the neutral safety switch.

Check the sockets for power and ground with a volt meter

inside gas tank, access through the top of tank

go to starter check the red wire with test light make sure you have 12 volts and then check the purple wire to the solenoid and hve someone turn key to crank should have power at that wire when in crank if not check the relay and theres a 10ap crank fuse

Crank sensor is right behind your harmonic balancer (3 or 4 pin connector). You cam sensor is in your distributor under your rotor...

pompe a essence au tps sensor

Do you hear fuel pump coming on ?

You have it right Avalanche.
Bank 1 is normally the one with the #1 cylinder side.
So Bank 1 sensor 1 is the first one downstream, bank 1 sensor 2 is the one after the catalytic converter.

To what degree do you lose power and in what way? Do you loose over-drive or does it loose power and speed (on the streets, highway, or at any speed). From your discription it does sound like either a fuel flow/pressure issue or a clogged cat.

When googling... don't be so specific.
Just try something like this...

gmc/ Chevy wiring 2003. Most sites will have breakdowns...ie.. lights...stereos.. speakers..etc. most years are close or compatible as well. Like 2000- 2005 will be almost identical.

There's a website that has all this information about all this and manuals everything totally free there are many actually but I personally like few for now u can try reliable-store.... let me know if u need help thanks

The firing order is 1 6 5 4 3 2 for 4.3L engine.

Is the engine turning over and not firing? Check the schrader valve on the fuel rail for pressure. Remove the air filter and spray starting fluid into the intake tube. Have a second person turn the engine over till it fires. If you have adequate spark to the cylinder and starting fluid reaching the cylinder, it will fire. Don’t over spray the cylinder.