Skip the auto shop - Our mechanics make house calls

Q: P1810 Pressure Manifold Fault

asked by on

I own a 2001 Monte Carlo SS with a 3.8 motor and a 4T65E transmission. VIN# 2g1wx15k319226376. The block of the motor cracked and the transmission was

slipping so I replaced it with the same size motor and same number transmission from a 2003 Jeff Gordon edition Monte Carlo SS VIN# 2g1wx12k739358113. The

motor would not start so the mechanic replaced the wiring harness and it started with the 2001 computer (coded 1LDB) but the transmission has given a code

(P1810 pressure manifold switch fault) and would not shift properly. We hauled the car to a transmission shop and replaced the computer with the 2003

computer(coded 3LDB) and the car would not start again. We replaced the 03 computer with the 01 computer and it once again started but it is shifting

hard and showing the same P1810 again. Any advice to fix this issue would be greatly appreciated. Thank you.

My car has 139000 miles.
My car has an automatic transmission.

A: If you have code P1810, then this might be ...

If you have code P1810, then this might be something wrong with the transmission control valve for the gear position sensor, or a compatibility problem between the different computers. Have a pinpoint test for the code done and see if it comes up with a failed part or ECM problem that cannot be fixed.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: The bushing in the extension housing spins out. I have new extension housing, yoke, drive shaft, and u joints.

Hi there. From the description you have provided, your vehicle's extension housing bushing repeatedly spinning out, something is being overlooked. Replacing all the components, without determining the cause, is not working. My thought is, look into the pinion angle of...

Q: My car has a coolant leak

Hello. The most common cause of a random coolant loss on this vehicle is a leaking intake manifold gasket. It commonly starts leaking coolant into the engine, which will be burnt off or will leak externally. I typically do a...

Q: My low oil light comes on but, when I start the car the second time, it goes out and the dipstick reads full

Hi. The most likely cause of this problem is the oil level sensor has an intermittent problem and is about to fail. There is electrical circuitry inside the oil level sensor that sends info to PCM. Sometimes this electrical circuitry...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...