95 Bonn Wont Start Warm

[ibtopcop]

i have a 95 Bonneville runs great and starts great when cold. If I drive it enough for it to full warm up and then leave it parked for 30min to 1 1/2 hour It wont start. When I try to start it it acts like it gona run but almost instantly starts to misfire terrible, most of the time it quites, but every once in a while it will misfire for about 15sec then gradualy come to a idle. Once running it has no problems at all. I have checked fuel pressure, new plugs and wires, and checked for vacume in the gas tank. Any help would be greatly appreciated.

[MRWSM]

Try the coil, I have seen mystery's like this solved by replacing the ignition coil. They can often not work properly when heated up. Good luck.

[ibtopcop]

Thank you for your reply, but the coils have been eliminated.

[bridget36907]

It may be the crank sensor I had this same problem with my 94 bonnie..when warm it won't start..it just cranks and crankns and cranks..after about 30 minutes-2 hours..it will start and run like nothing was wrong with it....part is cheap if you can't do it yourself..labor may be $$$