Question about 2002 Mercury Mountaineer

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My check ingine light went on after i had my fule pump replaced, can it be related?

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Yea is can , if the fuel system is not sealed it will give an evap code,

Posted on Nov 06, 2010

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Posted on Jan 02, 2017

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Chrysler p0456 code


Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Evaporative Emission (EVAP) canister or fuel tank leaks
- Evaporative Emission (EVAP) system hose leaking
- Fuel tank leaking
P0456 Chrysler Description The Evaporative emissions system is design to prevent the escape of fuel vapors from the fuel system. Leaks in the system, ca allow vapors to escape into the atmosphere. The leak detection system tests for EVAP system leaks and blockage. During the self-diagnostics, the Powertrain Control Module (PCM) first checks the Leak Detection Pump (LDP) for electrical and mechanical faults. If the first checks pass, the PCM then uses the LDP to seal the vent valve and pump air into the system to pressurize it. If a leak is present, the PCM will continue pumping the LDP to replace the air that leaks out. The PCM determines the size of the leak based on how fast/long it must pump the LDP as it tries to maintain pressure in the system.



Mar 20, 2014 | 2003 Chrysler Town & Country

1 Answer

Engine wont start when cold but after starting with starting fluid runs fine


The heat might have melted or damaged your main relay. Does it turn over or try to start, or does the lights simply come on and it does nothing?

if you need a diagnostic tool click here

great diagnostic tool

Oct 19, 2012 | 1997 Chevrolet K1500

1 Answer

I HAVE YOUKON 1999 SUDINLY STOP IGNITION IS OK ELCRTICAL FOR THE LIGHTES IS OK BUT INGINE NOT RUNING FULE NOT COMMING TO INGINE


Sometimes the antitheft security system can turn off the injectors and/or fuel pump when there is a problem in the system. A good indicator is if there is a light somewhere on the dash that reads SECURITY. If you see this, go to this link for info and DO IT YOURSELF solutions. http://vatspasslockpasskeysecurityhelp.yolasite.com/

May 31, 2011 | 1999 GMC Yukon

1 Answer

Drove car to work and went to leave car won't start, you can hear fuel pump run, replaced fule filter, will start with starter fluid but will not stay running..what do I look foro next ?


Check the vacuum lines on the fuel pressure regulator and check the regulator itself. Its a small round piece at the end of the fuel rail, theyre relatively cheap and easy to change. The rubber diaphragm inside the regulator corrodes and rips over time and the car will loose fuel pressure. You can have a garage run a check on the fuel system to narrow it down.

The regulator looks like this:
http://www.autopartswarehouse.com/images/product_images/thumbs/standard/std_fuel_pressure_regulator.jpg

May 04, 2011 | 2001 Pontiac Sunfire

1 Answer

The fule pump went out i replaced it the cars geting fule and fire but wont start


You say you have spark, and fuel, but you also have to check for compression....Get a pressure guage and check each cylinder, or atleast 3 of them..It is very possible that your timing belt has popped..

Jan 05, 2010 | 1999 Plymouth Breeze

1 Answer

I have a peugeot 206 1.4 hdi 2004 getig no fule to injectors is ther a fule pump in boot .do they have a fule cut off button


You can check the pump anyway, turn the key in ignition so dash lights come on, you should hear the pump come on for a few seconds. This sounds silly but have you also checked the fuse, also have you had the fuel filter changed? I am guessing there is fuel in the tank??...lol.

Oct 17, 2009 | Peugeot 405 Cars & Trucks

1 Answer

AFTER CHANGING FUEL PUMP


hi...For this problem you have to check the ECM
board.
check it out..
thank u..
rate me..

Apr 12, 2009 | 2002 Pontiac Grand Am

1 Answer

Grand am gt 2000 3.4 liter,,,fule pump or filter


you need to check to see if you have fuel pressure at fuel rail.if not suspect the fuel pump .if you do have fuel pressure replace the crank sensor.located by passenger side. behind crank pulley

Jan 30, 2009 | 2000 Pontiac Grand Am GT

1 Answer

Truck will not start


Have you checked the Fuel Filter?

Jan 04, 2009 | 2001 Chevrolet Blazer

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