Skip the auto shop - Our mechanics make house calls

Q: passlock problem

asked by on

i have done the passlock relearn procedure and it works and truck cranks and will crank for a little while but resets after a few hours what could be the issue thanks for your help
My car has an automatic transmission.

Hello - If you have a 2nd or 3rd key which is known to work, try those keys when your primary does not work. This will help isolate the problem to either the key or the reader. If only one key fails, perhaps the key has gone bad. If none of the keys work, its the reader - a Hall-effect electrical pickup that is located in the ignition key tumbler area. It may be a bit weak, and may not be reading the key consistently. The ignition tumbler and the key sensor will need to be replaced.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: What does it cost to replace the front end?

The cost of this repair would depend on the exact parts that require replacement. There are multiple parts on the front of the vehicle including suspension parts and brake Parts. Depending on which parts have failed you may need to...

Q: My dodge has a loose part that appears to be a thick circular metal component of the crankshaft pulley assembly.

Quote requested by customer to have the harmonic balancer replaced has been sent to the CS department.

Q: Car cranks but won't start - 2001 Pontiac Firebird

Simply put, the engine only requires three things to start: fuel, air, and gas. The car is likely not receiving one of these in the right amount or at the right time. You can do some simple tests to help...

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...