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Low engine power

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Sounds like ignition problem. When was the last time you did a full, complete tune-up on this vehicle?
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Friday, August 23rd, 2019 AT 1:40 PM (Merged)
Tiny
AUTOTROPOLIS12
  • MEMBER
  • 18 POSTS
This is the Sounds like ignition problem show the mechanic.
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Friday, August 23rd, 2019 AT 1:40 PM (Merged)
Tiny
BSULLI1043
  • MEMBER
  • 1 POST
  • 2002 BUICK REGAL
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 115,000 MILES
I recently had a tune up including spark plug wires and an EGR valve replaced. 400.00 later I still have the same problem. The car does not want to accelerate over 35 mph and I am being told different things by different people. Do you have any ideas.
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Friday, August 23rd, 2019 AT 1:40 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the TPS/MAF/MAP sensors checked out to include the fuel pressure. These components are okay-Get the tranny checked-
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Friday, August 23rd, 2019 AT 1:40 PM (Merged)
Tiny
KAMZ100
  • MEMBER
  • 5 POSTS
  • 2002 BUICK REGAL
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 68,000 MILES
. Hi my 2002 buick regal rmp gauge goes up but the speed gauge stays the same, basically the car does not goes fast as I press the gas pedal, instead the rpm goes up and feel like it's draging an makes a squish squish noise(this happens when taking off or the speed gauge is above 20 mph) can you please tell me what is the problem
thanks
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Friday, August 23rd, 2019 AT 1:40 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It may be a transmission problem. Check your fluid and make sure it's full. If your check engine light is on then have it scaned, most auto parts stores do this for free. Have a trans guy check the trans, they will scan it as well as the auto parts stores will not pickup those codes.
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Friday, August 23rd, 2019 AT 1:40 PM (Merged)
Tiny
CHUCK APODACA
  • MEMBER
  • 1 POST
  • 2001 BUICK REGAL
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
It idles fine but when you step on the gas it bogs down. I have changed the plugs, plug wires and coil whats next?
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Friday, August 23rd, 2019 AT 1:41 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hello,

This sounds like you have a catalytic converter that is plugged or you have weak fuel pressure here are three guides to help us find the problem.

https://www.2carpros.com/articles/engine-has-low-power-output

and

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

and

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Friday, August 23rd, 2019 AT 1:41 PM (Merged)
Tiny
CMGILLAM
  • MEMBER
  • 0 POST
Thanks for the guides I had this problem and when through the guides to find my fuel pump has shot so Installed a new one everything is working great again, thanks!
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+1
Friday, August 23rd, 2019 AT 1:41 PM (Merged)
Tiny
CHADEEE
  • MEMBER
  • 1 POST
  • 2000 BUICK REGAL
  • 6 CYL
  • FWD
  • AUTOMATIC
Feels like when you give it gas it doesnt take it and boggs down
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Friday, August 23rd, 2019 AT 1:41 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
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Friday, August 23rd, 2019 AT 1:41 PM (Merged)
Tiny
BOXMAKER75
  • MEMBER
  • 1 POST
  • 2002 BUICK REGAL
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 99,000 MILES
I believe I purchased bad gas. The car is sputtering and has loss of power. Can it be fuel filters?
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Friday, August 23rd, 2019 AT 1:41 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Possibilities: Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard
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Friday, August 23rd, 2019 AT 1:41 PM (Merged)

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