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.

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!
  • Home
  • Questions
  • When it turns on it does not move forward, but does move in reverse easily.

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: Check Engine Light is on

Hello, There are a number of reasons why the check engine light may come on related to the fuel injection system. Generally, the check engine light comes on when something fairly serious is going on with the vehicle. This can...

Q: how do you install spark plugs

Hi there, thanks for writing in. The quick and easy rundown of replacing your spark plugs is to carefully remove the spark plug wire from each spark plug, being sure to mark each one so you remember where they go...

Q: Battery dying after sitting in 2001 GMC Jimmy

Hi there. There may be a parasitic draw on the battery. This can be checked by inserting a digital multimeter set to ohms inline with the negative battery cable. Generally, the current draw should not exceed 50 milliamps one hour...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.