6.5TD motorhome starting problem

[Bezzer]

Can you tell me what I need to do to keep the pump running to get one quart of fuel from the fuel tank with the key on?

 

[dbrannon79]

what year is it? and what type of PCM connector does it have under the dash?

OBD1


OBD2

 

[jrsavoie]

Can you tell me what I need to do to keep the pump running to get one quart of fuel from the fuel tank with the key on?

Install a toggle switch to run it whenever desired for diagnostics and priming

 

[Bezzer]

dbrannon79: Motorhome is 1996 Safari Trek 6.5TD . I have a OBD2

jrsavoie : Where would you put a toggle switch?

 

[dbrannon79]

for OBD2, you'll need to find the fuel pump relay under the hood and jumper pins 30 and 87. the pump should run iirc. for the older OBD1 systems there is a pin in the data connector you can apply positive power to and turn on the pump, that won't work for yours.

other than that, find the pump on the frame and disconnect it's connector, run a ground to the black wire and positive to the red wire on the pump connector. you can use a cordless drill battery to do this so long as it's a not a 20v battery. 12, 14, and 18v battery will work, just don't run it very long on an 18v battery.

 

[jrsavoie]

dbrannon79: Motorhome is 1996 Safari Trek 6.5TD . I have a OBD2

jrsavoie : Where would you put a toggle switch?

Some place handy when your working on.it.

On trucks, Suburbans I put it on the firewall right next to the underhood fuse box.
On the older vehicles, I put it by the load center. On the right side.

I'm not sure where I would put it on a motorhome. I use a safety toggle with the flip cover. I also use an inline fuse