2002 Ford F-250 Engine Miss

BJ.BILLER

MEMBER
2002 FORD F-250
V8
2WD
AUTOMATIC
133,000 MILES

Recently I noticed that my truck seems to have a miss.
Conditions: Truck is at full operating temp. RPM around 2000. Xmsn in overdrive, haven't noticed it yet in any other gear. When it starts missing sometimes the tach "hesitates" when the gas pedal is pressed farther (eg. It will start missing at 2000 rpm, more accelerator does nothing to move the needle unless I goose it, at which point it will jump and seem to be alright). It dosn't seem to happen under any particular load. I've noticed it on straight stretches of highway as well as on hills.

5 Replies

SERVICE WRITER

MECHANIC
9,123 POSTS

Are there any codes?

Hook up a fuel gauge and monitor the pressure when the miss is felt to confirm or eliminate a fuel problem.

Was this

answer

helpful?

Yes

No

Monday, October 26th, 2009 AT 8:31 PM

BJ.BILLER

MEMBER
3 POSTS

Thanks for the quick reply. I appreciate any help ya'll can give me.

There are no codes. I'll check the fuel pressure in the morning. I found resistance measurements for the injectors and will also check them. Is there an easy way to check the coil packs without a scan tool? I haven't pulled the plugs yet either. All on the agenda for the morning.

SPONSORED LINKS

Was this

answer

helpful?

Yes

No

Monday, October 26th, 2009 AT 8:37 PM

SERVICE WRITER

MECHANIC
9,123 POSTS

Get the gauge out to the windshield. Drive it and monitor it for the symptoms and how the pressure was before and at the time of trouble

Was this

answer

helpful?

Yes

No

Monday, October 26th, 2009 AT 9:11 PM

BJ.BILLER

MEMBER
3 POSTS

The problem turned out to be moisture in the boot on the number one cylindar. I cleaned everything real good and put a dab of dielectric grease on it and all now seems good. I appreciate your help.

Thanks

Was this

answer

helpful?

Yes

No

Tuesday, November 3rd, 2009 AT 11:07 AM

SERVICE WRITER