Intermittent wont start, turn key on and fuel pump doesn't come on, traced out to no power at pump relay from pcm.
SOURCE: falls dead when driving, will restart after awhile
Did you try checking or replacing the coolant sensor? I think you should replace it along with the thermostat. Are there any problems like sputtering or any unusual noises or symptoms? Smoke, anything?
SOURCE: I have a 96 Olds Cutlass Supreme that intermittently won't start
If the lights on the dash all come on but the engine wont turn over it could be a problem with the VAT security system. Your key has a little chip on it between the teeth and the handle. This is a common problem with GMs', often just replacing the key is necessary but sometimes the VAT module needs to be replaced.
SOURCE: 96 cutlass supreme with steering column issues
you can jump out the security.. you can not trade out chips...you can try a relearn process.. as follows.. turn ignition on for ten minutes do not crank. after ten minutes turn key off then right back on for another 10 minutes...then one more time off then back on for ten minutes..then off hen try to crank.. if car starts then done.. if not send me email for way to jump out ignition.. kbutlrtech at yah00.com
SOURCE: 1994 cutlass supreme..fuel pump wont turn on/prime
Check/replace the fuse pump relay.
Replace fuel filter.
Check for 12V at the pump power wire.
A poor condition fuel pump will have more problem pumping fuel when the fuel level is below 1/3 of a tank.
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