1996 ram 3500 diesel with 320k miles. Automatic and 4 wheel drive. It is leaking diesel fuel from the left front area. The fuel filter is properly installed. The leak is getting worse. It has been leaking for about 9 months now.
Either one of the two rubber hoses split or a hole(or rusted out) has occured on one of your steel lines
or it is leaking from the water in fuel sensor / check valve. I will say forsure that more than likely u have a cracked rubber fuel line.
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If you are getting vacuum I would check the CAD (Center axle disconnect). You may want to go to a posi-Lok cable actuator if you're going to replace the vacuum actuator, better performance and you know it's going to engage!
The power steering pump is piggie backed to the vacuum pump. The seal in the back of the vacuum pump has engin oil under presure behind it cousing a leak that gets worse over time. Cummins make a seal kit to fix this leak.
it doesn't have a fuel pump relay it has a fuel pump control unit and it is located on the chassis back quarter drivers side near the tube cross member for chassis on top of chassis rail near bed mount. locate the rear springs front perch and it will be above that on top of rail.
hope this helps. good luck and please ask any question you have.
The first thing to do is to start monitoring the coolant level.
This will rule out the possible of headgasket coolant passage pin hole leak.
Headgasket can go at 170,000 miles+
Less if your truck is doing a lot of hauling.
Have you try Amsoil diesel treatment?
It work well for me.
I will ran the tank below 1/4 and fill up on NON
Use Chevon diesel until you get the problem figure out.
Water can come in three way
air condensation in the morning
Hi. I had the same problem on my 2004 Dodge Ram 3500 Cummins. I went to
the dealer and they did a bunch of diagnostics and they replaced my
fuel pump. At the same time they put in a retrofit kit that moved the
fuel pump to the inside of the gas tank. I have not had the problem
since. The cost was about $1,200, but my 100,000 mile drivetrain
warranty covered it and I had to pay the $100 deductible.