Q: Drop in engine compression.

asked by on

I think I have lost compression in the motor.

Loss of compression in an engine is a serious problem that usually results in a complete engine rebuild or replacement. Since this is a big job to diagnose, it is very important you have a certified mobile mechanic look over your Altima before any drastic moves are taken. A mechanic will be able to perform what is known as a compression and leak down test on your vehicle. This will determine if indeed your car does have low compression and if so the leak down test can tell us why this is happening.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Drop in engine compression.

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: My car shakes really bad while in park, or when I mm braking.

Shaking on braking is often due to warped brake rotors, thickness variation in the rotor or excessive rotor run-out on the wheel hub. If the engine is vibrating in Park, there is a motor mount fault and/or an engine management/tuning...

Q: I have a 08 Nissan Altima 2.5 why is it running hot?

The heater is a "heat exchanger" just like your car radiator. If the car is running hot and you blow air over the heater "core" in the passenger compartment you, in effect, increase the cooling capacity of the car's cooling...

Q: Both Of My Car Fans Keeps Running While My Car Is Off

If the fix consisted of disabling the automatic control of the cooling fans, it will actually be easier to just fix the original problem and restore the car to normal (intended) operation so that you don't have to use the...

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...
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...
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.