Skip the auto shop - Our mechanics make house calls

Q: Sluggish feel in gas pedal

asked by on

The gas pedal has been feeling very sluggish and also feels that way when I am starting the car. It has that feeling like my car is out of gas, but it’s not. There are four things that I am considering might be the problem: 1. The hose that comes from the air box and runs to the fuel manifold might be crimped which would cause low air fuel mixture for the spark plugs. 2. It might be bad spark plugs. 3. The fuel system might be clogged. 4. The lid to the oil pump (where I fill up with oil) has been coming off a lot, thus causing loss of oil pressure. Since I just replaced the fuel pump, I’m thinking that it is not the problem. It should have flushed out the fuel lines. Do you think it is the oil pump lid and what is your solution?

A: Hi there, thanks for writing about your 197...

Hi there, thanks for writing about your 1979 Volvo 244. First, you should confirm there is good spark at the spark plugs to eliminate ignition as a problem. Then, check fuel pressure for the correct pressure - it is likely low if there is a fuel supply issue. Chaining the fuel pump just moves sediment and debris along to the fuel filter and injectors.

When you changed the fuel pump (in-tank pump), did you change the fuel screen on the pump as well? Was there rust or sediment in the tank? On an older vehicle, this can be a huge problem. If there was - have the tank cleaned and "sealed", or replace the tank. The fuel injectors on older vehicles like your 244 are much more sensitive to sediment and debris than new vehicles. Once you are certain you have clean fuel going to the injection system, have the injectors cleaned or replaced. Check your PCV valve for being clogged if excessive crankcase pressure is pushing the oil dipstick out, or forcing crankcase breather hoses off. A YourMechanic professional can help you diagnose and repair your car.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Shift to P to drive when I'm already driving?

Try to contact a dealer in your area to see if your vehicle is under the recall for the transmission parking pawl problem. This may fix the problem you are having. There are a few other recalls that your vehicle...

Q: Shutoff during start, Check Engine Light on, power loss - 1990 Mazda B2200

First thing is to check to see what problem codes are setting off the Check Engine Light. The compression numbers you mention are also pretty low, indicating worn piston rings, or burned valves. If you would like, a certified technician...

Q: How do I replace the water pump housing gasket?

The water pump on your car is bolted directly to the engine block. The only housing is the water pump itself. To fix your leak, you will need to replace the water pump and timing belt. The water pump is...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
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...