'92 ramcharger canyon sport stalls when engine gets hot/under stress, also suddenly loses speed under highway conditions briefly before re-engaging again when engine is hot. Once stalled - it'll turn but won't restart until engine cools. Also when starting in the morning, ignition doen't even turn over until I press the gas pedal. Had fuel filter replaced, accelarator relay replaced. had the dodge dealer run the truck all day and it failed only once but no computer codes, but they want to revamp the transmission for $1900. Took it to good transmission specialists, they said the transmission is fine. another dealer thought the wiring harness needs replacing. Any ideas how o proceed?