Skip the auto shop - Our mechanics make house calls

Q: Speedometer speed display problem, possible skipping

asked by on

I have an odd issue going on. When I'm driving, no matter what speed, and with or without cruise control, the speedometer will drop. Example: If I'm going 65, it will drop to around 30. The car's speed stays consistent, but sometimes it feels like the engine "skips". I've been to my mechanic repeatedly. All the wiring is good. They ran some computer checks on it, and the issue was supposedly with the cluster in the instrument panel. They replaced that whole thing, but the problem is still happening. If it isn't the instrument cluster, what else could it be?

A: You will need to take it to the dealer for ...

You will need to take it to the dealer for them to flash the engine control module (ECM) per technical bulletin 18-001-08. A reprogram is needed to correct the ECM programming for the proper cluster speed readings. You have to take it to the dealer because only they have the scan reprogramming tool. This is not a recall so you may be charged for the cluster reprogramming. However, there may be an active recall for the ABS on this vehicle which involves reprogramming that module, so I suggest checking with the dealer to have it done at the same time. There should be no charge for the ABS reprogramming as that is related to a recall.

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: Evap system

Hi Barbara, It sounds like you may have a problem with what is known as an evaporative emissions control system. Your car has a small purge valve with a purge solenoid in the Evaporative Emissions system that controls the venting...

Q: Transmission and other problems....pre-purchase 2007 Dodge Caliber

Hello - given the number and variety of problem codes you list, I would recommend a pre-purchase inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to the cars location, perform a thorough survey of...

Q: Always having to charge battery

If your car will run fine once it is started, but will not restart once it is turned off then most of the time that is a sign of a bad battery. The battery would need to be load tested...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...