Q: How do I read the tachometer?

The oil consumption on most engines is supposed to be less than 1 quart per 1,000 miles. You state you are using 3 quarts every 2,000 miles. The first thing would be to have an oil consumption test that would...

If the idle air control valve (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-idle-control-valve) or mass air sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-mass-airflow-sensor) is having problems. If the idle valve is sticking closed it can cause the engine to idle very low and rough, and will run fine if the throttle...

Your engine oil usage is considered normal when you ask a dealer or manufacturer. They will tell you that one quart for every 750 miles is considered okay by their standards. Has your Accord always used this much oil, or...

The easiest way to disable the security to your vehicle is to remove both battery cables (https://www.yourmechanic.com/services/service-battery-cables) on the battery. Leave the cables off for about 12 minutes. Hook up both cables and make sure that they are tight. Take...

A large transmission leak like one from a cooler pipe or a leaking transmission pan can cause the transmission to slip if the level gets low enough. Trying to drive the vehicle while the transmission is slipping does not help,...

Hello - your "no heat" problem (https://www.yourmechanic.com/question/no-heat-on-passenger-side-by-andy-k) sounds like an ambient air temperature sensor on the passenger side with problems, or a malfunctioning air blend door inside the heater air box. I would recommend a heater inspection (https://www.yourmechanic.com/services/heater-is-not-working-inspection) by a...

Hi Robert. Thanks for writing in today. Although it's vital to change belts and hoses on a regular interval (as they are designed to wear), there is no recommended replacement for a timing chain. In theory, the timing chain should...

What you are describing sounds like a fan clutch (https://www.yourmechanic.com/services/fan-clutch-replacement) that may be wearing out. A mechanical fan clutch works by helping to control the radiator cooling fan speeds as the engine heats up and cools down. As the motor...

It would be very difficult to say what this wire is for if you don't know the service history of the vehicle. I would try to look for another connector nearby that it may connect to and try to plug...