Question about 1992 Buick LeSabre

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Dies for no reason

My 92 lesabre died for no reason spark was good shot some starting fluid in it ran fine so replaced the fuel filter ran great for 10 miles then died again got it home and it shows a code 21 tps could this be the problem or do you think it is deeper.........

Posted by waitenonyou on

  • waitenonyou Aug 20, 2008

    replaced the tps checked fuel pressure is at45 steady still won;t start unhooked maf sensor will run great now for 15 secounds......runs great on starting fluid though....

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Hi,trottle position sensor ( tps )is a very accurate diagnostic,if this dosnt fix it run a fuel presure test for a posible defective fuel pump,. good luck......

Posted on Aug 18, 2008

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How did you check the fuel filter? Disconnecting it from the fuel line that goes to the carb is the best way, making sure the gas is turned on under the tank. Bleed off a little gas into a can or something just to make sure the filter isn't plugged.

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(You might drain the bowl on the carb of ols gas before you go any further)

Good luck!

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