Question about 1995 Jeep Grand Cherokee

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Fuel pump would prime then wouldnt then would. now doesnt prime at all

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Your ecu engine computer is bad. It's what sends the signal to the fuel pump to turn on, prime. Have your ecu checked and replaced if necessary.

Posted on Jan 04, 2011

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1 Answer

I have to prime fuel pump before I start the engine. What can cause this. Brand new fuel pump. 1999 GM yukon


how do you prime an electric fuel pump thats buried inside a fuel tank ---are you getting fuel to the throttle body --is pump turning on --retest pump new doesnt mean free from defects if this is the first replacement pump for vehicle was the connection to pump upgraded /changed out [problem with connection corrosion and damage would incur causing pump failure or non operation of pump ]also check lines are not kinked and pump installed correctly

Oct 19, 2016 | Cars & Trucks

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On my 09 cobalt im not getting any primary fuel pump activity and when i turn the key to start starter does not enguage all relays clicking inside and under hood normaly


hook up a to the obd and comand the ecm to prime the fuel pump if it doesnt prime its the ecm providing wires and relays are good

Jun 11, 2014 | 2009 Chevrolet Cobalt

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Why doesnt electricity to my fuel pump the fuel pump fuse doesnt have electricity


wont have constant power unless its running ,,,, when you first turn on ign it cuts in for a few seconds to prime the fuel system and then only runs constantly when engine starts,,, if its not doing this it could be a faulty relay or a crank sensor

Nov 22, 2013 | 1998 Cadillac Catera

1 Answer

12ht wont prime


filling the filters before installing will make priming go more quickly.
once the pump is primed crack open the fuse line at the injector while cranking until you have fuel pulsing out, close it then move on to the next injector.
keep doing this until the engine runs smoothly.
it may start running before all the injectors have been purged so keep clear of all moving parts and a fire extinguisher handy would be a good idea.

Apr 14, 2013 | 1989 Toyota Land Cruiser

1 Answer

I have a 93 bmw 318 brought the as the fuel pump wouldnt prime as some fool had hacked the alarm out. now the car cranks but theres no spark and for some reason the the fuel pump has no live either so...


put a test light on the fuel pump connector at the power wire and crank if the light lights when cranking then replace the fuel pump. comman problem in these.

Mar 03, 2010 | 1996 BMW 318

1 Answer

1992 dodge w-250, took her in for a service...bleed fuel lines...


It sounds like you are talking about a diesel engine as gas engines are self priming. Lift pump or primer pump may be defective. Check for loose fittings or lines and damaged o-rings at filter housing. Sounds like you are sucking air somewhere.

Jan 30, 2010 | 1992 Dodge Ram 250

1 Answer

I ran my peugeot 406 out of diesel and i think there is an air lock as it starts but doesnt keep running? i had to click on 2006 peugeot 405 as it wouldnt let me select a product. my car is infact a 1996...


406 1996 Diesel would either be 1.9D, 1.9TD or 2.1TD

Each of these use a vacuum type distribution pump, which means once the fuel has managed to get to the pump via means of initial priming it looks after itself by constantly sucking fuel. If the engine stops after a a short time it could be a blockage caused by running very low on fuel. First thing to check is the primer system. You may have the squeazy balloon type or the purflux set up with a hand primer button. The issue is common to be at this point but hard to diagnose.

What I have done in the past is disconnect the pipe going to the main pump and given a seperate feed from a pipe submerged in a can of diesel, if it runs fine then it rules out mechanical and pump issues leaving it only to be a supply issue.

Regards

Lloyd

Dec 21, 2009 | 2006 Peugeot 405

1 Answer

I have a 1998 gt mustang i recently put a 255lph pump in alls been fine since, had a tun and all for all the mods. but the other day the car wouldnt start. primed the throttle body and was able to get to...


A couple of extra checks are turn the car over and try to start while some one squeezes the fuel return line,At the rail,with tool that doesnt damage fuel line.It eliminates fuel bypass through the fuel rail.No need to undo anything.Have someone confirm you have power while Cranking at the fuel pump end.It eliminates power supply issue.If these two test work out ok then the pump is looking very much like the culprit

Oct 18, 2008 | Ford Mustang Cars & Trucks

1 Answer

Fuel problems


did u hit the fuel shut off button to discharge the system? if you did plug it back in or push the button down. pump is electric so it doesnt need primed. also try the fuel filter. it may need replacing as well

Jun 16, 2008 | 1989 Ford Bronco

1 Answer

Starting problem


If the hard grinding noise is a metallic sound only when you start it, sounds like your starter bolts are loose or the starter itself needs replacing. fuel pressure doesnt cause any particular noises like that. If your fuel pressure or pump had problems, your vehicle simply wouldnt start

May 30, 2008 | 1992 Jeep Cherokee Briarwood

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