just got the truck back yesterday from the body shop from a front end collision. I had to replace the heat exchanger and when I got the truck back checked and the pump is not working. if they ran the truck without coolant would it blow a fuse or just burn up the pump? Which fuse is the pump tied into to check that.

 

The intercooler pump has an inline fuse where it attatched to the underhood electrical center power stud. I think its a 20. Its under the cover. Also if they had the fenders and such off make sure they did not disconnect your tap wire into the fuel pump power wire. Thats the gray wire to power the other side of relay.

 

Thanks, I did not do the install so was not sure how that was wired up.

 

Was anything disconnected? Hopefully the pump did not burn up. I hear they are not cheap.

 

have not had a chance to look yet but i have a suspicion the ran it for a while with no coolant in the reservoir.

 

My pump died on me but this was after 60k miles or so. The factory pump they use in lightnings is the exact same pump that came with my maggy. New pump was $100 on ebay.

 

thanks for the info blew

 

I didn't have a tester handy so I just unplugged a few wires on the relay and found one that shut it off and on and the fuse is fine so i guess the pump took a crap!!!

 

Did you check the plug on the bottom? It's kind of hard to see and mine somehow unplugged itself a couple weeks ago. I put a ziptie around the plug to hold it in place.

 

Yeah, first thing I checked. Thanks.