No start or no comm, see inside
Thread Starter
Le Mans Master
Joined: Jan 2001
Posts: 5,015
Likes: 508
From: Hilton NY
No start or no comm, see inside
While driving the car two weeks ago over a bump at 35 mph the engine went dead, after shifting into neutral it started right up and ran ok. I thought that a loose wire was the logical cause of the engine stalling but didn't investigate further. Last Friday the car would crank fast but not start, codes for the computers said no comm and odd stuff like backup lamp circuit failure or horn circuit failure codes came up. Clearing codes did not allow the engine to start. I disconnected the positive cable to the battery then reconnected it and the engine started but stalled as soon as the car accelerated so it was towed home. The car has a digital fuel pressure gage that showed low pressure or normal pressure but normal pressure didn't mean that the engine would start. After checking all the fuses I discovered the problem, the nut on the B+ stud was loose. The B+ connection is where all the + battery power wires are connected and is located under the fuse/ relay cover next to the battery, see where all the large red wires are bolted together. Once the nut was tightened the car started right up and after the codes were cleared none returned. I would recommend checking the wires on the B+ connection to make sure they are tight if you have a no start, no comm or stalling condition.
