93 Buick Centry feels "choked"

Tiny
RABING2
  • MEMBER
  • 1993 BUICK RIVIERA
I have a 93 Buick Centry with 115K mi. 6 cyl 3.3 L Fuel Injector

For the past 3 months, car has been idling normally, but has trouble accelerating. There is a delay when I push the accelerator and when the car actually accelerates.

The car also has a "choppy" (or pulsating) power delivery and in general feels sluggish. The "choppy" power is usually at low to medium speeds. I don't notice it as much at speeds over 45 mph.

The car has a history of overheating (i've put on 3 temperature sensors, 1 thermostat, several coolant flushes, and 1 new radiator fan). I had a new exhaust put on 6 months ago to replace one that leaked. Spark Plugs and fuel filters were replaced last week and performance has not improved. I also added some fuel injector cleaner to my gas tank to see if that would clear up the problem (and it hasn't).

I thought the problem was with the drive train, but it stalled out on me this morning and the normal idle speed makse me otherwise doubt that.

Aside from getting a new car, is there anything that can be done to fix this?
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Friday, January 5th, 2007 AT 3:08 PM

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Tiny
SERVICE WRITER
  • EXPERT
Determining Cost per mile to drive your car compared to a new car:

Add all of your repair bills from 36000 miles to the present mileage. Use these numbers because this is the mileage that the majority of the manufacturer s warranties expire. Subtract the currant mileage from the 36,000-mile warranty expiration point. Then divide the dollars spent on repairs by this to get a dollars per mile figure. It usually comes out to about $.08 to $.25/mile. Which doesn t mean much at this point. So to get a better comparison to what new car is going to be costing; the purchase price of a new car is divided by the first 36,000 miles that it is under warranty. Since a new car owner is getting problem free driving for 36,000 miles the purchase price should not be extended beyond this. Using a purchase price of $15,500 plus the sales tax, tags, title brings it to about $17,000 yielding about $.47/mile. This figure does not include oil changes, tire rotation, interest on a loan or an insurance premium increase. Now that means something. So you can save about $5,100.00 more annually when you drive 15,000 miles.
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Saturday, January 6th, 2007 AT 7:29 AM
Tiny
SERVICE WRITER
  • EXPERT
Is the overheating issue still present or no longer occuring?

Check the fuel pressure to find if it is in specification.
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Saturday, January 6th, 2007 AT 7:31 AM

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