Question about 1997 Mercury Cougar XR7

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Will not start until cooling fan and fuel pump shut-off

The fan may run for 15 sec or indefinately fuel pressure is @ 40 psi

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  • Anonymous Jan 21, 2009

    Needs engine computer

  • snapon_rob Feb 25, 2009

    i have the same problem and dont know where to start? it could be 15 different things.i have to leave key on accessory for 45- one minute and wait for fan to shut off before the car starts, if i attempt to start before the cooling fan stops the car just cranks over....and dont start? i am quickly losing my mind over this and if anyone out there actually knows how to fix this mail me at ......

  • kevdh Feb 28, 2009

    97 ford cougar with exact same problem. will not start until cooling fan shuts off.

  • Daniel Arellano
    Daniel Arellano May 11, 2010

    We need more information . The fan keeps turning ? and you can't start the car until the fuel pump ...what ?

  • supercross12
    supercross12 May 04, 2012

    same car, same problem exept my cooling fans never shut off, or fuel pump just keeps on running.... ECU gone bad??



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1997 couger will not start

Posted on Oct 01, 2009


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1 Answer

Corolla NZE. It runs for a few secs when starting then shuts off. What's wrong?

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Engine runs 15 or so will shut off and starts when cool. Replaced fuelfilter and fuel pump relay. still does the same thing.

If you don't have any check engine warning light on your dashboard relating to EGR system means it has to be the FUEL PUMP according to you fuel pump relay and fuel filter was replaced but the most common cause by that is fuel verify have you try to install Fuel Pressure Tester to a fuel line it might not be the specified psi while observing the tester a several minutes tester shows it dropping down the pressure till it shut off by itself.

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Need to know why a 97 mercury cougar won't start until cooling fan and fuel pump stop running

I would think it's a problem with (CCRM) constant control relay module . This module has relay's inside that control the fuel pump , cooling fans , A/C compressor clutch , PCM - engine computer power relay . And thier are electronics involved , solid state circuity . Google CCRM
found this helpful answer from mercury mechanic on JustAnswer com

May 07, 2017 | 1997 Mercury Cougar XR7

1 Answer

Fuel Pump problems. Diagnostics shows a pressure loss.

pressure loss is either a bad fuel pressure regulator on the fuel rail where the injectors are, or a bad check valve in the fuel pump in the tank. usually the latter.

A quick test is to turn the key to on and measure pressure. Should be 40 psi. Pump will hum for 5 seconds and shut off if engine is not running. (Safety step).

Pressure should drop very little for 5 minutes.
You can cycle the key off for 15 seconds or until you hear the relay click off. Then turn key back on to start pump for 5 seconds again to build pressure. This will help get it started for the day as it builds pressure that bled down over night.

Please rate, thanks.

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Was running rough replaced fuel pump ran about 15 sec. died has'd started sence

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When the motor warms up it shuts off and will not start agai untill it cools down

check the fuel pressure when the car just started should be more than 30 psi when hot check or when the car shuts off check fuel pressure if fuel pressure is below fuel pump is not good, changed fuel pump

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1999 hard starting expedition, with 5.4 engine

fuel pump may be going. try this. turn key on, listen for fuel pump to run for 5 seconds. Turn key off, wait 15 seconds or until you hear relay click inside car. Turn key on again for 5 seconds and ff for 15 seconds. repeat once more. This will pressurize fuel system to 40 psi so injectors have full pressure. If it starts quickly now, you are getting bleed down through the check valve in the fuel pump or the fuel pressure regulator on the fuel rail.

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it is not the regulator if it has 40 lbs of pressure try to pinch off the return line and if pressure drops quickly it is either the check valve in the pump or the rubber seal between the pump and the sending unit

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1 Answer

Fuel problem

fuel pump could be overheating and need replaced, if this happens exactly the same each time it seems that is the case, the gasoline in the tank cools the pump through the returned system, alot of people that drive around near empty all the time will burn out their fuel tank quicker because of the pump not being cooled properly, you have spark when the car wont start?

Oct 22, 2008 | 1993 Pontiac Bonneville

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