Truck Turns Over But Won't Start? Read This

[MADDOG]

If you own a newer Dodge, you may have run into this issue. It turns over fine but it won't start. It's a common problem.

Many dealers will have you pay $551 dollars for a new ignition switch. Or they may say you need a new TIPM which can cost up to $1000.

But neither of those could be the problem. There is $5 relay buried inside the main fuse/relay box has a tendency to burn out. This relay engages the fuel pump. If the relay is burnt out the fuel pump will not come on and pass fuel forward.

I talked to a fellow I know and he advised he had found a fix

There is a bypass cable online that lets you test your fuel pump, and the relay. It can also be used to bypass that relay so you can still drive. It can be left in permanently if you wish. Its a cheap, easy fix, or will at least help you determine whether or not the fuel pump is bad without having to spend big money on a diagnostic.

One of the dealership fixes is to cut into the wiring harness just to do the same thing this cable with fuses will do. Of course, they'll charge you an arm and a leg to do that as well.

Here is the link explaining how this all works:

https://www.verticalvisions.com/tipm-fuel-relay-solutions.html

And here's a picture of a diagram showing the harness bypassing the faulty relay:



There is now a module available if building a cable is not in your skill set:

https://www.verticalvisions.com/products/tipm-plug-in-relay-systems.html

 

[BossHogg]

It should be noted that any by-pass solution could remove the TIPM/BCM's ability to turn off power to the fuel pump when the TIPM/BCM recognizes the vehicle has been in an accident.