Skip the auto shop - Our mechanics make house calls

Q: Engine light on n speedometer going crazy

asked by on

Hi I m having nissan bluebird sylphy 2000 Recently I was having headgasket problem and than after changing whole engine.. suddenly engine light on and speedometer going crazy I m little worried how can it be possible.. as mechanic check engine is allright

My car has 130000 miles.
My car has an automatic transmission.

Hi there:

Anytime you swap out a complete motor, you’re chances of having electrical glitches like this are incredibly high. This is mostly due to the ECU not being reprogrammed or not communicating correctly with other electrical sensors and components on the vehicle. To solve this issue, you’ll have to have a professional mechanic complete a check engine light inspection so they can download all codes and determine if the ECU needs to be reprogrammed.

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: how do you disconnect the car alarm on a 1996 Nissan Pathfinder?

Hi and thanks for contacting YourMechanic. Disconnecting an alarm to your vehicle depends on which alarm you are removing. If you are attempting to remove the alarm that is built within the factory settings, then that is not possible for...

Q: Vibrating and shaking after putting intake manifold gaskets

Oil leaking down into the spark plug wells can causes the plugs to short out to the cylinder head, yielding the misfire you are experiencing. Replacing your valve cover gaskets, the plugs, and cleaning out the spark plug wells, and...

Q: Blower motor stopped working

If your blower doesn't work on ANY speed setting, then yes, the blower motor fuse or a relay is the likely problem. The relay is on the main fuse panel. It is also possible the motor has enough grit and...

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 Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...