Skip the auto shop - Our mechanics make house calls

Q: trasmission

asked by on

So the truck is a 4wd and the speedometer just stoped working after we had the alternator replaced. The truck drives but seems to not be shifting past 30. When your trying to go more than 30 it won't and it's making a poping noise from under the truck. Speedometer rolling over 100 When clearly your only going 30. Check engine light is on. Also abs light. Just replaced brakes and ball bearings and rotors with stabilizer bar. Please help

My car has 178000 miles.
My car has an automatic transmission.

A: It sounds like one of the wheel sensors is ...

It sounds like one of the wheel sensors is not working properly and causing the vehicle to be in failure drive mode. You may have damaged one of the wheel speed sensors when replacing the bearings and brakes. Have the computer scanned and monitor the speed sensors to see which one is causing the problem and inspect to see if sensor or sensor wheel is damaged and needs 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

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 stalls when stopped, steering wheel locks up

Yes, this is a common problem with CX-9. Carbon deposits can build in the throttle body causing a restriction in airflow and reaction time of the throttle plate causing stalling with no Check Engine Light or no diagnostic trouble codes....

Q: My Expedition vibrates a lot when stopped at a slope

Hello and thank you for your question. This symptom is not related to the engine but rather the transmission. If you drive the vehicle around and the engine runs just fine, then either the engine oil is low, causing the...

Q: Evaporating coolant

There are two things you might want to ask yourself. First, are you using a 50/50 percent ratio of coolant to distilled water? If not, this could cause the coolant to evaporate when it gets above 170 degrees. This is...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...