Q: I think I'm having minor problems. High RPMs, running hot, and delayed shifting

asked by on

I have a 1994 Honda accord LX 4door and when I start it up my rpm is either really high or pulsating. It also runs hot.and when I put it in drive or reverse it take a few seconds for it to go.What could be the problem?
My car has an automatic transmission.

Hello. You appear to have a series of issues here. With the RPMs jumping like this, it is usually caused by a vacuum leak or a dirty throttle. Both of these will cause this to occur.

The running hot can be a number of things and they may or may not be related. If it has a leaking head gasket it can also cause the idling issues, so I would do a block test first. The overheating should be the priority repair before anything else.

As for the delay in shifting into gear, this is usually cause by low transmission pressure. I would check the fluid first. If the fluid is low, then this will occur so the fluid should be filled first. If the fluid is full but is dark or smells dirty, then you have a transmission failure that is starting. If you are planning on having this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose these issues and perform appropriate repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. I think I'm having minor problems. High RPMs, running hot, and delayed shifting

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: Engine

Based on your description it sounds like your engine was overheating and the overheating was accompanied by a coolant leak. Coolant leaks can be both a cause and a consequence of overheating. Consequently, once the leak is repaired, your vehicle...

Q: Wreathing sounds of engine recoil starter in Honda CR-V EX

You only have 39,000 miles. If it runs good otherwise, I would advise you to have the engine oil flushed out and then I would change the oil in filter. Use Castrol GTX and one quart of Lucas Oil additive,...

Q: Car won't go in gear only reverse

Hello. You did not supply a vehicle model or year so I would have to speculate that you have a bad transmission or axle problem. The grinding noise can be internal gears of the transmission or the axle not engaging...

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...
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...
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...