My 1994 Caprice with LT1 engine
does not want to start when hot. But this case is unusual: The engine does not want to **crank** when hot. Gives a fraction of an engine rotation or maybe just a click, but does not turn over enough to start. As though the battery were dead, but I don't think this is the case - in this condition, jumping the battery from another car does NOT cause the engine to crank. And the headlights and interior lights are bright, indicating a good battery. But once things cool off for 20 or 30 minutes or more, the engine will crank enough to start.
The starter was new last fall (one of the "small size" replacement ones), and everything seemed OK during the colder months of the year. But now that hot weather is here, it seems I have to either leave the engine running, or have it be off for awhile before restarting.
Is it possible for the engine to somehow be binding up so as to be physically more difficult to turn over, when hot? When the engine does start, and is idling fully warmed up, there does not seem to be anything amiss. No odd noises, idle speed seems nominal.
I am left to conclude that the new starter from last fall must be defective somehow, but would like confirmation or perhaps other ideas or theories. Thanks.