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Where is the fuel pump relay or fuse located in 96 mercury sable? The car hesitates to start & stay running. Replaced egr valve and still have same problem?

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Both of them would be under the hood in the fuse/relay block. But if it keeps starting, wouldn't be the pump circuit. The only thing it might be that is fuel related is if the pump is tired and weak, and unable to put out proper pressure. So don't worry about the relay or fuse, but have the fuel pressure checked. Autozone and others will loan out fuel pressure gauges for a returnable deposit.

If pressure is correct to specifications (should be in the 40-50 psi range, as a guess), probably not a fuel problem, although you haven't yet ruled out the injectors. But leaking or clogged injectors would have been a long running problem, and if the condition just started, it probably is not an injector problem. I would be more inclined to look at a problem in the ignition system (spark plugs, or plug wires), or in the computer controlled idle. Have you cleaned out the throttle body and the passages for the idle air control?
You also need to check for possible trouble codes.

Posted on May 06, 2017

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Posted on Jan 02, 2017

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My 2000 mercury sable jumps and hesitate sometimes when i take off...


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OBDII SETS CODES P0401, P0171 & P0174 . 1998 Mercury Sable


P0401- Exhaust Gas Recirculation Flow Insufficient Dectected
Possible causes - Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control valve stuck closed
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Code P0171- Fuel Injection System Too Lean Bank 1 Possible causes - Intake air leaks
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1989 Mercury Sable GS 3.0L runs rough and idles down and stalls


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May 31, 2010 | 1989 Mercury Sable

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Fuel pump relay location on 98 mercury sable


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1999 Meercury Sable. No electric to fuel pump


There are 2 fuses and a relay involved in this circuit but the lines that run power to the pump run partially exposed under the vehicle as well. Check the Interior Fuse, check the Fuse in the box under the hood and check to make sure you have voltage at the fuse under the hood. If these are good check for voltage on the wires going to the fuel pump at the fuel pump itself. You can do this with a multimeter and thumb tack. Use the thumb tack to puncture the insulation in the wires and test for voltage. If you don't have voltage there, start working your way back 12" at a time until you find the point where you have voltage to isolate the area of the break.

Nov 28, 2009 | 1999 Mercury Sable

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No start.


it does have arelayt anfeuse,start with control module,and ifyou have a wireing diagram check for output at prosessor

Jan 04, 2009 | 1998 Mercury Sable

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