Q: Q: Very low rpm

asked by on

Recently my vehicle has very low RPM the most I can get up to is like 1500. 35 to 50 mph. I've just had a full service just 2 days ago and recently changed the cam sensor and the temperature control switch for the air conditioning. The service engine light is not on and I had a computer connected and it reads that nothing is wrong. The vehicle runs great except for this issue. Hope that I can get an idea as to what I can do. Thanks in advance.
My car has an automatic transmission.

Hi there. From the description you have given, I believe you are stating that your vehicle has no power, and you are only able get to 35-50 mph and nothing over 1500 rpm. You also stated vehicle runs great, which is somewhat confusing. The service engine soon light not being on, is also confusing. Typically, when there is such a loss in performance, the computer recognizes the fault in some way. This all leads to, the possibility of a restricted exhaust system (ie; plugged catalytic converter) or possibly a plugged fuel filter? I recommend having your vehicle’s lack of rpm and speed be diagnosed and repaired by a certified technician from YourMechanic.

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. Q: Very low rpm

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 seizes - 2008 Chevrolet Suburban 2500

Hi and thanks for contacting YourMechanic. If the mechanic said that there is no compression in the engine, then there could be 2 things wrong. Either the engine has all of the valves or rings burned or broken, or the...

Q: 1997 GMC Safari SLX 4.3L I Just install a coolant temp sending unit. now my motor wont start. but dose when unplug. what could be

The coolant temperature sensor sends a signal to the ECM to enrich the mixture when the engine is cold (cold engines need more fuel at initial start up), otherwise you will have hard starting or perhaps no starting. Something is...

Q: Does an air intake manifold have parts that can go out to affect the smog an motor?

Code P0300 relates to a misfire of some kind, which can be caused by any number of things. Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...