2000 Ford E-Series Van Misfire Cylinder 5

Tiny
JASONGM3
  • MEMBER
  • 2000 FORD E-SERIES VAN
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 185,000 MILES
I got a code the other day for P0305 (misfire cyl. 5). I knew it was time for a tune up anyway. I replaced all the plugs, coil pack, and wires. Put it all back together, went down the road and almost immediately the same code came back! I read somewhere that the egr ports can get clogged in these motors. Sooo I pulled everything back aprt, and the upper intake off. Cleaned out the ports, installed the new gasket, and buttoned everything back up. SAME THING! Less than a mile down the road the ol P0305 is back. Please help before I self destruct! Jason
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Wednesday, June 16th, 2010 AT 3:10 PM

8 Replies

Tiny
RASMATAZ
  • MEMBER
Hi jasongm3, Welcome to 2carpros and TY for the donation.

Your next step is to check the no.5 compression and injector a problem here will cause a misfire in that cylinder
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Wednesday, June 16th, 2010 AT 4:40 PM
Tiny
JASONGM3
  • MEMBER
I kind of figured that Which I do not have the proper tools to do that with. I was wondering if anyone has had the. Same problem. ( I hear it is common) And what normally fixes it. I can do a compression test, but do not know how or what to use to test the injector?
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Wednesday, June 16th, 2010 AT 5:02 PM
Tiny
RASMATAZ
  • MEMBER
Get a multimeter and read the resistance of the injector if okay you have to inspect the seal and also if its leaking when ignition switch is On-other causes of misfiring

1. Defective spark plug
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.
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Wednesday, June 16th, 2010 AT 5:11 PM
Tiny
JASONGM3
  • MEMBER
Ok so far.
1. Changed plugs, wires, coil pack. No change.
2. Pulled upper intake cleaned egr ports, no change.
3. Did compression test 180psi.
4. Tested resistance which was 16.2 ohms (9-16 is normal).

Still the same. Im thinking clogged fuel injector, and to get a new one. I still only have one code. Which is p0305 misfire cyl 5 and no other codes. What do you think?
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Friday, June 18th, 2010 AT 8:26 PM
Tiny
RASMATAZ
  • MEMBER
E150 van

Same thinking on clogging-see below


http://www.2carpros.com/forum/automotive_pictures/12900_inj_4.jpg

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Friday, June 18th, 2010 AT 8:42 PM
Tiny
JASONGM3
  • MEMBER
Are you familiar with the ford 4.2? It looks possible but do I have to take off the upper intake to get the drives side fuel rail off? It looks possible to do witout removing it.
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Friday, June 18th, 2010 AT 9:16 PM
Tiny
RASMATAZ
  • MEMBER
Honestly I've never done this year/model on the 4.2L below is the removal process

REMOVAL

WARNING:

DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL-RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
FUEL IN THE FUEL SYSTEM REMAINS UNDER HIGH PRESSURE EVEN WHEN THE ENGINE IS NOT RUNNING. BEFORE WORKING ON OR DISCONNECTING ANY OF THE FUEL LINES OR FUEL SYSTEM COMPONENTS, THE FUEL SYSTEM PRESSURE MUST BE RELIEVED. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
CAUTION: After disconnecting, plug the fuel lines to prevent leakage.

Remove the engine cover.
Remove the air cleaner assembly.
Relieve the fuel pressure.
Remove the upper intake manifold. For additional information, refer to Engine.


http://www.2carpros.com/forum/automotive_pictures/12900_e1_1.gif



Remove the fuel pressure regulator valve vacuum hose.
Disconnect the fuel lines.


http://www.2carpros.com/forum/automotive_pictures/12900_e2_1.gif



Disconnect the six fuel injector electrical connectors. NOTE: One fuel injector is shown, all are similar.


http://www.2carpros.com/forum/automotive_pictures/12900_e3_1.gif



Remove the fuel injection supply manifold.
Remove the bolts.
Remove the fuel injection supply manifold.


http://www.2carpros.com/forum/automotive_pictures/12900_e4_1.gif



Remove the six fuel injector retaining clips and the fuel injectors. Inspect the fuel injector O-rings and if necessary, install new. CAUTION: The fuel injectors are deposit-resistant. Do not clean. Use O-rings made of special fuel resistant material. Use of ordinary O-rings can cause the fuel system to leak.
INSTALLATION


http://www.2carpros.com/forum/automotive_pictures/12900_e5_1.gif



To install, reverse the removal procedure. CAUTION: The injector clips must engage the upper groove on the injectors or fuel leaks may occur. NOTE: Lubricate the new O-rings with clean engine oil, XO-10W30-QSP or DSP or equivalent meeting Ford specification WSS-M2C153-G, to aid installation.

http://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm
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Friday, June 18th, 2010 AT 9:46 PM
Tiny
JASONGM3
  • MEMBER
Well I unbolted the upper intake, and removed the air filter box, that allowed me to raise the drivers side of the intake, and support it with a piece of wood. I unbolted the drivers fuel rail and was only able to raise it enough to get access to the 2 rear drivers side injectors. I replaced the one in the middle (number 5). Made sure to put new o rings on, out everything back together. It fired up quickly like a honda and ran perfectly! This was my last resort. If this didnt fix it, she was going up for sale! Thanks for all of your time and help!
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Wednesday, June 23rd, 2010 AT 8:23 AM

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