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1990 Mercury Sable Question: my sable has 93000 mi on it owntoplied it 2 weeks it runsd veryhot,idlesbadstopd

 

Question

breefeet, 3.0L V6, Wenatchee, WA, August 05, 2014, 01:18
 Rookie

uses excessive fuel,(like 15 mpg!)
) from a strongly running engine otherwise.... whenbraked at stoplights she shudders surges in place of idling.
oh and she often needs coaxing when restarting if warm.
also displays rough idle on cold start thar soon smooths out. but often needs throttle pressure to accomplish smooth out

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  • Answer #1

    jenniferdavis August 05, 2014, 03:54
     Rookie

    anybody out there feeling "map" sensor? or brain entirely? 15mpg at 93000 miles?
    shifts slow breefeet?

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  • Medium-star Best Answer
    ziptie12 August 05, 2014, 04:17
     Master

    Fuel pressure , injector(s)/regulator leak-down. TEST first.Fouled plugs. Lack of maintenance.

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