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Discussion Starter #1
My eldo don't push as fast as it should, feels like its running at 6 cyl or something, my friend's 93 eldo rips mine apart, what could be the problem?
 

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1998 Eldorado ELC
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112 Posts
Hello
Try replacing plugs and plug wires. Also, be sure bolts holding intake manifold are tight.
Good luck,
RDH
 

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2008 SRX-V8, 1991 Eldorado
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1,543 Posts
Loss of power and higher fuel consumption and sometimes combined with higher oil consumption may well be traced back to carbon build up.

WOT's only disloge a small amount of carbon and has little effect on an engine with heavy carbon deposit residule. Heavy is to imply when the second and or third rings have become immobile and the EGR sets a code not long after a cleaning.

Not all performance problems are a direct result of heavy carbon deposits, but they are common, and more pronounced in higher mileage engines.
 

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2008 SRX-V8, 1991 Eldorado
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I must agree that the FPR is a simple check, but a leaking FPR will normally manifest itself as a warm engine hard start problem first, long before a performance problem is noted.

Yes, a leaking FPR will indeed cause a rich condition affecting performance and higher than normal fuel consumption, but I stand by my original post regarding carbon deposits.

Codes will very much help with the diagnostic process.
 
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