WHAT WOULD CAUSE THE FUEL INJECTOR FUSE TO BLOW WHEN THE CAR IS PUT IN DRIVE.

MIKE TERWILLIGER

MEMBER
1998 VOLVO S70
210 MILES

THE FUEL PUMP WAS JUST CHANGED IN THE CAR, NOW THE CAR WILL IDEL AND RUN IN PARK AND NETURAL EVEN REVERSE, BUT SOON AS IT IS PUT IN DRIVE IT WILL BLOW THE FUSE FOR THE FUEL INJECTORS, I CHECKED THE WIRES AROUND THE SHIFTER FOR ANY BROKEN OR BARE SPOTS FOUND NONE, EVEN TRIED A 20 AMP FUSE IT BLEW ALSO
HELP ME.

1 Reply

DRCRANKNWRENCH

MECHANIC
3,380 POSTS

My best guess is that the engine torquing over is allowing a bare wire to short out.
In drive the engine will torque over or move in the direction of engine rotation. It will move even more with more load and/or acceleration.
So, I would not rule out looking at other wires in and around the fuel pump as that was the area worked on.
The engine movement will make the unibody twist ever so slightly is ndrive and will let almost anything that is not solid mounted move around.