Bad gas milage, power, and idling

5

Asked by Mar 06, 2012 at 03:13 PM about the 1994 Buick Regal 2 Dr Gran Sport Coupe

Question type: Maintenance & Repair

My 94 regal is getting about 10mpg, has no power, and has trouble idling and likes to
stall sometimes. I replaced the MAF sensor, EGR valve, spark plugs and wires, and still
having the same problem. Anyone have any idea what might be causing this?

3 Answers

10

MAY BE HAVING CATILITIC CONVERTER ISSUE

1 of 1 people found this helpful.
875

yes i have a good idea what it can be ,,,, so do these steps and see if there right ,,, 1st disconnect the maf sensor while it is running and see if it changes it s running problem,,,if so its a defective maf,,,, if not step two 2) question is the car really hard to start at all times?,,, if so disconnect temperture sensor by thermostae ant see if it runs better now,, note this is while car is running when you disconnect it,,,,if so it does run better then its the temp sensor,,,,,Step three 3) and this is the one i think it will be FYI the front of the motor on the lower part of the engine ,, there is the crankshaft pully if you look st it closely wjile engine is off there is a crank sensor that gets its signal as the engine is turning what happens is the magnets on the sensor useally brakes or cracks so the possition of the crank doesnt know if it fires twice or once ao whatever the case is and also pay attention to the pully itself its actually like two pieces together as one so you can see that the rubber between them joing them together and if that rubber is bad or the two pieces have slipped out of sequeince then its firing the plugs at the wrong time ,,, this means you need a new pully and more then likely a new Crank sensor to.

2 of 2 people found this helpful.

Have you changed you fuel filter, should have been the very first thing and then move on to to the other not so obvious problems. I own a heavily modified 98 regal gs and have to tell you after reading this post it really made my day, got a good laugh. If you don't know were it is, look under your drivers side frame closer to the rear tire, try that then try all the other stuff, point A and to point Z, next could and hopefully not fuel pump. Good luck, ilregal

Your Answer

Regal

Looking for a Used Regal in your area?

CarGurus has 9,215 nationwide Regal listings starting at $2,500.

ZIP:

Buick Regal Experts

  • #1
    Tom Demyan
    Reputation
    390
  • #2
    dvigano
    Reputation
    380
  • #3
    Js08016
    Reputation
    350
View All

Related Models For Sale

Used Chevrolet Impala
521 Great Deals out of 34,218 listings starting at $950
Used Honda Accord
1,134 Great Deals out of 62,430 listings starting at $1,199
Used Chevrolet Camaro
427 Great Deals out of 30,918 listings starting at $3,550
Used Nissan Maxima
294 Great Deals out of 23,317 listings starting at $899
Used Toyota Camry
1,077 Great Deals out of 73,745 listings starting at $295
Used Ford Mustang
710 Great Deals out of 38,332 listings starting at $895

Used Cars For Sale

2017 Buick Regal For Sale
52 Great Deals out of 5,386 listings starting at $15,988
2016 Buick Regal For Sale
15 Great Deals out of 780 listings starting at $13,990
2015 Buick Regal For Sale
26 Great Deals out of 517 listings starting at $13,500
2014 Buick Regal For Sale
39 Great Deals out of 827 listings starting at $10,981
2013 Buick Regal For Sale
7 Great Deals out of 295 listings starting at $6,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.