Skip the auto shop - Our mechanics make house calls

Q: Car doesn't have the acceleration "punch" it once had

asked by on

My car’s mileage is approx. 67,000. It just doesn't seem to have the same acceleration “punch” that it used to have. When I floor the gas pedal, it now takes up to about 5 seconds before the engine truly revs. This happens on level ground, but especially when going uphill. Years ago the engine air intake filter was replaced with a K&N. Thinking that the air intake might be a problem, it was recently cleaned using a K&N filter cleaning kit. But that wasn’t the solution. I don't claim to be a DIY’er with vehicles. I've done light jobs like changing the air filters or windshield wiper pumps, but I go to a dealership for the involved jobs. However, I don't want an open-ended type of tune-up on my car. I’d like to first find answers. Can you provide me with what would be a solution? Thanks.

A: The Insight has something called the Lean B...

The Insight has something called the Lean Burn mode, which is part of the cleaner emissions scheme. It has always been there, but over time, it seems to get more amplified as owners do not get the expected kick that they feel they once had.

It is similar to when a new computer is bought and seems fast until you have it for several months and then it doesn't seem as quick. However, I am not suggesting this is the core issue, just a complaint that has been logged by many insight owners.

The first step to ensure you have no underlying issues causing a lack of performance is to have faults read out of the ECM. Unmetered air issues, mixture problems, electric motor to combustion motor interface, transmission, or sensor issues can generally be pointed to via a fault survey of the ECM.

Then, conventional methods of engine troubleshooting should be employed to correct the lack of engine response issue. Note that the high voltage system should be disconnected using the manufacturer's procedure before attempting to do any electrical work on this vehicle, as serious injury or death can occur.

You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the equipment and expertise to diagnose your acceleration problem.

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・Save up to 30%

Get a quote

What others are asking

Q: The battery light turn on when it rains and steering wheel gets jammed for a few seconds. Then battery light turns off it works

This is most likely caused by the serpentine belt slipping. You need to have the belt and tensioner checked for problems and have them repaired as needed. If you need further assistance with this repair, a certified technician from YourMechanic...

Q: Car shuts off, battery light on after part replacement - 1992 Mercedes-Benz 300SE

Hello. You need an alternator in your car. The alternator does not appear to be charging correctly. Always check all of the connections first just to make sure that they are fine. if they are then the alternator needs to...

Q: Engine stays running but no power at wheels

Greetings and thank you for writing in with this question! Problems like this can be difficult to diagnose. Does the Check Engine Light illuminate when the car loses power? If so, a local mechanic (like those with YourMechanic) can diagnose...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.