Stalls in drive but not reverse
I just recently bought a 99 K1500 suburban with
5.7. The truck ran fine for the first 4 days. Then
while driving it started losing electrical power for
just a split second and come back. It continued to
get worse until it stalled. Then it went through a
phase of instrument panel going crazy which
related to it not starting. Now it will start and idle
just fine. I can put in reverse and it's fine. I can
apply brake and gas will not stall. It's also fine in
neutral. But soon as I put it in any forward gears
the instrument panel goes crazy and motor dies.
I've checked and cleaned battery and cables had
battery and alternator checked. Replaced ignition
switch, fuel pump module, fuel filter. Any advice
appreciated.