Hello to all.
It has been a while since I posted here. I am looking for some folks, who are smarter than me (which is not saying too much LOL), to help me figure out why my engine does not crank. In the past, I would reach out to Mr. Seas (Scott Almquist) for electrical help. Sadly, Scott passed away. I miss him as a friend and as a "go to techie."
I have a 2008 Volvo VNL with D16 engine and an I-shift transmission. Due some personal issues, it has been "sitting" at my house way to too long. I need to get back on the road!. I would start it up about every month or so. I had a battery tender plugged in all the time to keep batteries charged. The batteries were about five years old and I knew they were due for replacement.
When I went to start the motor, nothing happened. I checked the batteries and they were at 7 volts.
Today, I cleaned all of the terminals and replaced the four batteries. I started the on board generator and let it run for a while. When I turned the key to start the D16 engine, nothing happened. The engine did not crank.
So here is what I know so far.
I waited for the computer to go through its start up sequence and then turned the key to crank. The engine did NOT crank. The dash lights all shut off. The battery voltage (13.6 volts) did not drop. It is acting like no signal is going to the starter motor telling it to start the engine.
Other than low air pressure for the system and transmission, there were no faults.
I have a power shut off switch that shuts down all of the power to the truck. There are two mega fuses in the battery compartment, one for negative and one for positive cables (from the battery).
When I tested the shut off switch, the voltage going into the shut off switch read 12.71. The voltage coming out of the sut off switch was 12.68. So, there is a little voltage drop across the shut off switch.
The voltage on the mega fuses was the same on the input and the output. So, there was no voltage drop across the fuses
The computer recognizes when the I-Shift is not in gear. So, ithe I-shift shifter is "talking" to the computer.
To summarize, I turn the key to start the engine but the engine does not crank. The dash lights go completely off. I mean "lights out." There is no voltage drop when I try to crank the engine. If there was some short, I would expect to see a voltage drop.
I have not yet checked the brake pedal switch. As I recall (it has been a while since I drove the "Big Boy"), I had to have brakes applied and the transmission in neutral to start the engine.
I am not "stuck" away from home. There is no urgency. The Big Boy is sitting in the driveway of my home. I am planning a trip sometime in May.
I am in Anaheim, California. If anyone is local and wants to drop by, your help would be very much appreciated.
Jim Dromi
(714) 821-5820