Skip the auto shop - Our mechanics make house calls

Q: When it turns on it does not move forward, but does move in reverse easily.

asked by on

I have a 1977 GMC longbed truck. When it turns on it does not move forward, but does move in reverse easily. It was low in oil so I put 3 pints in. Could it be that the gear is no longer working? Any comments, suggestions would be greatly appreciated.

My car has 100000 miles.
My car has an automatic transmission.

A: The transmission in your GMC truck will nee...

The transmission in your GMC truck will need to be taken out and disassembled for inspection. It probably needs to be rebuilt or exchanged with a rebuilt or used transmission.

I’d recommend getting some help from a qualified technician who will be able to diagnose why your car won’t move forward. Once this is done an accurate repair can be made.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car shuts off as soon as the starter stops

Hello there, thanks for writing in about your 1997 Chevrolet El Camino. Although you already replaced your ignition switch, many different faults can cause a no start condition. Some of the more likely faults would include a fuel pump, battery,...

Q: Air conditioning doesn't work right

Hello. If the air conditioner is working in the front but not in the second and third rows, it is possible that blend doors and/or the blower motor need to be replaced. You would need to have a certified mechanic,...

Q: Side markers will not turn off, turn signals not working

i am working on this

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...