my message is not coming on 2000 pontiac montana

Check the ignition switch on the column under the dash, the key lock should be connected to this to activate starter. First go to auto store ask if they have one in stock & just look at it so u know wat it looks like. This might b problem.

same problem here replaced the crank sensors and the fuel pump , the van turns over but will not start , the fuel filter is clear and getting pressure through and both sides....I was told it may be the throttle position sensor and the only way to check it is with a flow meter. the van will start and run with starter fluid but i have to keep pumping the gas or as soon as i take my foot off it stalls...low idle at 1000 high idle will run smooth at 3000...but trouble getting there...

Right behind fuse box(underhood) is a relay that is your starter relay the purple is power out to starter red is main feed, black is ground,white is pcm/bcm to collapse relay for start mode

Hope that helps

Ps check gauges fuse in pass side fuse box.15 amp