Skip the auto shop - Our mechanics make house calls

Q: Pressing the gas pedal and not getting the desired output

asked by on

Hello..i just did a valve adjustment job went wrong the first time(tight=scary idle) ..i did it again and was sometimes i press the gas pedal from still ..the car responds but not as feels like an intermittent response for a maximum of 1 second then things go back to normal...Is it a carbon build up issue due to my first valve adjustment (tight) ? if yes..where did the carbon build up in (valves, throttle valve,,exhaust,cylinders).and finally..can driving the car with high revs (for a few days) solve the problem and remove some carbon.?thanks...

My car has 154000 miles.
My car has an automatic transmission.

It may not have anything to do with your valve adjustment. Your car is almost 30 years old so it could have any number of problems. I would begin by checking for air leaks. Look at all of the hoses and rubber parts that hook up to the engine and be sure everything is in good condition. Any air that gets into the engine without passing through the air flow meter will weaken the fuel mixture. Also, the throttle switch and air flow meter could be wearing out. They are both very sturdy parts but at 30 years old, they could be subject to failure. If course you want to check all the typical ignition tune up components. If you decide you need help with this, contact Your Mechanic. they will send a technician to your home or office to check out your BMW and recommend a solution.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Can i put an automatic engine on a manual bmw?

If you want to use an OBD-II controlled engine (2001 versus 1993), you will have to completely replace the entire electrical system on your 1993 324i (i.e., use only the 2001 model year electrical system and computers). The engine computers...

Q: Screen is white & blinking on small screen navi

Simply disconnecting the battery should not have any adverse effects on the vehicle. The exception to this is if the battery was hooked up backwards, this could cause strange electrical faults. The most likely cause would be a wiring issue,...

Q: Putting a edelbrock carburetor on 307

Hi there: Thanks or contacting about adding a new carburetor on your Cadillac. However, without knowing what intake manifold you currently have, along with any aftermarket emissions components, we're not able to give you the precise advice you need...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...