Skip the auto shop - Our mechanics make house calls

Q: Car will not start even though all the dash functions display. The engine stated and ran until I had a mechanic clear its check en

asked by on

My 2006 Pontiac GTP will neither crank or run. It had been displaying both a check engine light and a tamper lock icon but would start and run. But after I had a mechanic clear the dtc codes the car would not crank or start even though the dash displays worked. There is no juice going to the starter.

My car has 112000 miles.
My car has an automatic transmission.

A: Hello. The most common cause of this sudden...

Hello. The most common cause of this suddenly happening like this is a bad ignition switch. This tends to fail on most GM vehicles and cause this same problem. I would start though by load testing the battery just to make sure it is fine and also check to see that the connections at the battery are clean and tight.

If those are fine, then I do a voltage drop test of the ignition switch to see if it is failing. Most of the time that is the problem. If it is fine, then the body control module needs to be checked with a scan tool to see why it was turning on the security system. If there is nothing showing in the BCM and this is happening then the BCM is bad. If you are planning on having this no start problem checked, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the starting issue and let you know what needs repair.

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・Save up to 30%

Get a quote

What others are asking

Q: Alternator making noise

The charging system would need to be checked to see if it is charging, or killing the battery; the alternator is most likely the cause. I recommend that you have a mechanic, such as one from YourMechanic, come by and...

Q: My car is only 3 years old. Should I be suspicious that the starter went out?

Hi, thanks for writing in. A starter like any other mechanical and electrical part is subject to failing sometimes for no apparent reason. However, sometimes this is misdiagnosed as well and often times mistaken for something much more simple like...

Q: ECM fuse keeps blowing

Hi there. If the ECM fuse keeps blowing, then there is a definite electrical short. Most of the time the short is in the ECM, but it may have a short in the wiring going to it. I usually isolate...

Related articles

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 Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...