Category Archive: GMC / 3500

Error Code

Car Information:
GMC HD3500
Year: 2001
Engine Size: Vortec 8100
Trans: Automatic

Issue/Question: Car shuts down when driving, if I wait a few minutes, it will start back up and has code ///tranmission controller mod, malfunction// where is it located, and whats wrong with it?

Answer:
Most likely 2 problems will need to scan and look at transmission data and check the fuel pump module connector by the fuel tank for the intermittent stall.

Magic Mechanic
1432 Lee Road OrlandoFL32804 USA 
 • (407) 298-7447

Additional AC Unit in car

Car Information:
GMC 3500 Van
Year: 1996
Engine Size: 350CI
Trans: Automatic

Issue / Question:
This van is owned by our Greyhound Rescue and Adoption group. We use it to transport adoptive Greyhounds after they come off the track. About once a month we will take up to 13 Greyhounds up North to groups up there that have adopters, but no dogs. Needless to say with up to 13 good sized dogs in the van, their body temp averages 101, and only the factory AC, during the warmer months it can get very uncomfortable. Our thought was to get a small home AC unit and mount in in one of the rear door windows. The main issue is how to get power to it. Using a power inverter was suggested, but, impact on the alternator and changing system was felt to be too much of a risk. The other option was to mount a generator to the towing hitch. The AC unit is 115v 5amp, rated at 565watts. What do you think would be the best way to go?

Answer:
I think the window unit and generator on the hitch is a great idea. They make a small Honda super quiet generator that would work perfect!

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

Fuel Pump Stopping

Car Information:
GMC/3500
Year: 2000
Engine Size: 350
Trans: Automatic

Issue / Question:
The fuel system stops even after it has been repaired. Do you have any history/facts?

Answer:
I would like to look at it, but I suspect a bad connector at the fuel pump. It’s very common on these trucks. Also, a bad ignition switch will cause the same problem cutting power to the pump.

For professional auto repair & services in Orlando you can call our shop today at 407-629-2661.

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