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Ive replced the head on my yd25 by the book, ive bled all the air out of the fuel lines and the fuel pump and it still won't start. Help me please.

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  • Cars & Trucks Master
  • 742 Answers

If it's diesel then you need to bleed the pump. Check the rocker arms and make sure they are not over tightened.

Posted on Nov 15, 2014

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Posted on Jan 02, 2017

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SOURCE: Bleeding air out of fuel line

If you have air in your fuel line it may have a crack in your line ,do you have a clear fuel filter ? How are you seeing the air If you just reinstalled a new line bleeding is not nessary..

Posted on Dec 16, 2008

  • 43 Answers

SOURCE: brake pedal is spongy

how did you bled them back 2 front?

Posted on Mar 27, 2009

  • 2 Answers

SOURCE: 91 s10 2.8 will not idle but will run when pumping

if fuel injected there is a solinoid that opens the air intake s o the truck will run when not pushing on the gas pedel , that is stuck shut.

Posted on Oct 29, 2009

  • 12 Answers

SOURCE: hi all, my vw corrado g60 is running hot all the

you can also change the thermostat to a neuspeed one, stock is 71*C and the neuspeed one is 80*C delay time before opening and once it opens it allows more coolant too run through alot more. had the same problem. check the cooling fan also, it could have a short, from the dealer it runs about $600+ , oem is about 250.

how I could help

Posted on May 12, 2010

roniecon
  • 6924 Answers

SOURCE: 1999 toyota camry wont start

You most likely have no injector pulse,this is caused by a bad cam sensor,or pick up coil,or crankshaft sensor.

Posted on May 13, 2010

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1 Answer

How do you bleed a diesel pump jeep Cherokee turbo diesel 3.1 5 cylinder 2001


we dont have this engine here, USA.
but i have the WG jeep book,
starting page 12 , chapter 14


FUEL INJECTION PUMP BLEEDING
(1) If the fuel injection pump has been replaced,
air should be bled at the overflow valve before
attempting to start engine.
(a) Loosen the overflow valve (Fig. 18) at the
rear of the injection pump.
(b) Place a towel below the valve.
WARNING: WHEN CRANKING THE ENGINE TO
BLEED AIR FROM THE INJECTION PUMP, THE
ENGINE MAY START. PLACE THE TRANSMISSION
IN NEUTRAL OR PARK AND SET PARKING BRAKE
BEFORE ENGAGING THE STARTER MOTOR.
CAUTION: Do not engage the starter motor for
more than 30 seconds at a time. Allow 2 minutes
between cranking intervals.
(2) Crank the engine for 30 seconds at a time to
allow air trapped in the injection pump to vent out
the fuel injector drain tubes. Continue this procedure
until the engine starts. Observe the previous WARNING
and CAUTION.
(3) Tighten overflow valve.
HIGH-PRESSURE FUEL LINE BLEEDING
WARNING: THE INJECTION PUMP SUPPLIES HIGH-
-PRESSURE FUEL OF APPROXIMATELY 45,000 KPA
(6,526 PSI) TO EACH INDIVIDUAL INJECTOR
THROUGH THE HIGH-PRESSURE LINES. FUEL
UNDER THIS AMOUNT OF PRESSURE CAN PENETRATE
THE SKIN AND CAUSE PERSONAL INJURY.
WEAR SAFETY GOGGLES AND ADEQUATE PROTECTIVE
CLOTHING AND AVOID CONTACT WITH
FUEL SPRAY WHEN BLEEDING HIGH-PRESSURE
FUEL LINES.
WARNING: DO NOT BLEED AIR FROM THE FUEL
SYSTEM OF A HOT ENGINE. DO NOT ALLOW FUEL
TO SPRAY ONTO THE EXHAUST MANIFOLD WHEN
BLEEDING AIR FROM THE FUEL SYSTEM.
Bleed air from one injector at time.
(1) Loosen the high-pressure fuel line fitting at
the injector (Fig. 19).
(2) Crank the engine until all air has been bled
from the line. Do not operate the starter motor
for longer than 30 seconds. Wait 2 minutes
between cranking intervals.
(3) Start the engine and bleed one injector at a
time until the engine runs smoothly.

end quote.
pump timing is on next page
or tank filter line priming before. above.

Mar 22, 2016 | Jeep Cars & Trucks

1 Answer

Im getting a crank/ no start situation on my 93 chevy astro ext 4.3Ltr v6 and ive never let a vehicle beat me b4 but this one is giving me a sound whoopin - pls help


Easiest way to trouble shoot a crank no start is to spray starting fluid into the air cleaner intake before you crank it. If it fires then dies it is a fuel problem. If it doesn't fire it is a spark problem. If it fires then dies, check the fuel pressure at the engine end of the fuel line. Pressure below spec prevents the injectors from working properly. See shop manual for the proper procedure.
If it doesn't fire put a spark tester at one of the plug wires set to the proper gap to measure the spark voltage being developed by the coil etc. Good luck.

Sep 22, 2015 | Cars & Trucks

1 Answer

2002 chrysler 3--M overheating


Have you checked the fan? A bad fan either electric or manual with clutch will cause a heating problem.

Jan 10, 2014 | 2002 Chrysler 300M

1 Answer

Brake peddle goes to loor and drops revs and ive adjusted brakes and bled them still go to floor when i turn car back on . is it booster or master cylinder ?


start the bleeding process by opening the longest line first. Get a mate to help with the process . Pump the pedal a few times and hold it down while the bleed screw is opened. tighten the screw and pump up again open bleed screw . Repeat process until no air comes out of the screw . Repeat the process back to the last line. Keep the master cylinder reservoir full during the processes.. Operational brakes will work wit or with out the booster . The booster only reduces the amount of energy you have to exert to put the brakes on

Dec 14, 2013 | Proton Cars & Trucks

1 Answer

New fuel pump won't prime. No fuel from gas tank to engie. Lines are clear.


The pump works without priming anything. If the tank is vented, and you have fuel in the tank, and the pump is installed correctly, it should pump fuel out.
Are you sure the pump is getting power and ground ?

Jun 24, 2013 | Mazda Protege Cars & Trucks

1 Answer

2004 chrysler pacifica AWD fuel problem gauge falling at half and hard to put fuel in when fueling.


run the fault codes and check for an EVAP venting problem as that affects the refueling process and engine problems after refilling

May 07, 2017 | 2004 Chrysler Pacifica

2 Answers

Not getting fuel will not start put startingfluid in air intake motor will try to start


Fuel pumps bad! Unless you have a clogged fuel filter!! Have great spark?

Sep 04, 2011 | 1989 Mercury Tracer

1 Answer

My 99 impreza turbo wont start.


FUEL PUMP MIGHT STILL WORK,BUT IT MIGHT NOT BUILD UP ENOUGH FUEL PRESSURE.ALSO COULD BE M A S,,,MASS AIR FLOW SENSOR,CHECK IT CLEAN IT,OR REPLACE IT..YOUR THROTTLE POSISTIONING SENSOR ALSO.IF IT MOVED OR FAULTY CAR NO GO.I HAD IT,REPLACED AWAY I WENT...OTHER SIMPLE IS FUEL FILTER

Dec 08, 2009 | 1999 Subaru Impreza

1 Answer

Expert van 2.0 hdi engine runs lovely until you try to put your foot down engine cuts out management light comes on, turn ignition off leave about 10 secs engine starts and runs no misfire or anything a...


Hi You need to get the ecu checked for fault codes if there are none it is possibly low fuel pressure you should allso check this have you changed the fuel filter or opened any fuel lines this could introduce air
which will lower fuel pressure.Good luck Chris.

Feb 24, 2009 | 2006 Peugeot 604

1 Answer

Spongie brakes


Gravity bleeding doesnt usually work real well.

Get a clear jar of some type, and a piece of 1/4 inch vacuum hose about 18 inches long. Put about 2 inches of new brake fluid in the container.

Start at the passenger rear wheel, losen the bleeder, slide the hose tightly over the open bleeder, the other end in the jar where you can see the hose end.
Fill master cylinder reservoir.

Pump brake no more than 4 times, watching the hose end in the jar for bubbles. After 4 pumps, check reservoir, refill. Pump 4 more times. Watch for bubbles. Check reservoir, pump 4 more times. If you see bubbles at any time, then keep going through the above steps until you stop seeing bubbles.

Go to rear wheel, tighten bleeder. Go to driver rear wheel, and do the same thing, although this time it won't take but 4-6 pumps to purge any air.

Go to passenger front, repeat.
Go to driver front, repeat.

Do not recycle any of the fluid.

Jan 28, 2009 | 1991 GMC C1500

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