engine missing @ 1500 rpms - Ford Powerstroke Diesel Forum

 
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post #1 of 9 Old 03-14-2012, 03:49 PM Thread Starter
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engine missing @ 1500 rpms

just bought a 1999 f350 drw 2wd 7.3 with 61000. drove the truck for 250 miles and it started to miss and lose power. scanned and came up with no codes ran cct cyl. 4 and 8 failed. did buzz test and got idm failure code (heard that happens with some scanners) replaced uvch and gasket no improvement. any help would be great it is my only vehicle and dont want to make things worse. if i had a cylinder low on compression shouldnt i see smoke.
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post #2 of 9 Old 03-15-2012, 09:07 AM Thread Starter
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bump.... anyone
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post #3 of 9 Old 03-27-2012, 05:09 AM Thread Starter
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anyone got any input
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post #4 of 9 Old 03-28-2012, 03:21 PM
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I'm battling with my early 99. I think a cam sensor could be to blame? But I'm not 100% on it. They are really cheap to replace though. I'm not a fan of buying random parts but I hear a lot of people keep a spare in the glove box. I wish you luck!

E99 eclb 4x4 powerstroke with 6 speed trans really beat up with 480k on the dash and supposidly 140k on engine.

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post #5 of 9 Old 03-28-2012, 04:49 PM
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When you did the buzz test, did all all buzz normally? And your truck is not smoking? Have you checked your ebpv sensor and tube? Mine was clogged up once, I cleaned it out and I noticed a little power increase. Never had a code. How bad is the miss? How much of a power loss? At times I have thought I had a slight miss, it always goes away, I think it my have been fuel related??? I just had a new transmission put in, feels like I have more power than before, guess it was slipping and I did not notice.

2002 F250 CCSB Lariet 7.3 Auto
2" helper springs 285/75R16 Toyo M/T
80 gallon fuel tank in bed
DIY 6637
Warn Premium Hubs
Ford Transmission @ 407,425 miles 3/24/12
Full Force Injectors
Avic X930BT w/ backup camera

www.riverchasefarms.com
"We Farm for Ducks"

As of 6/11/16 605,552 miles

2005 Excursion Eddie Bauer 4X4 6.0
Stock 225k miles
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post #6 of 9 Old 03-28-2012, 04:51 PM
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Try a cam sensor.
Black, Grey, & Dark Blue Cam Position Sensor Perdels Test - Diesel Forum - TheDieselStop.com



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
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post #7 of 9 Old 03-29-2012, 04:25 AM Thread Starter
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miss is pretty bad between 1300 and 1700 rpm and at idl will lope a bit. have a cps but truck went back to the dealler and have had it for over a week they are saying a bad idm. suppose to get the truck back today lil skeptic because at first they told me the truck was 100% and they did a capression test right threw the injector hole......B.S........so i wait to see. suppose to get it back today.
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post #8 of 9 Old 05-10-2013, 05:57 PM
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Did you ever get your truck fixed?

2002 F250 CCSB Lariet 7.3 Auto
2" helper springs 285/75R16 Toyo M/T
80 gallon fuel tank in bed
DIY 6637
Warn Premium Hubs
Ford Transmission @ 407,425 miles 3/24/12
Full Force Injectors
Avic X930BT w/ backup camera

www.riverchasefarms.com
"We Farm for Ducks"

As of 6/11/16 605,552 miles

2005 Excursion Eddie Bauer 4X4 6.0
Stock 225k miles
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post #9 of 9 Old 01-21-2014, 04:44 AM
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marine rx, did you ever figure out the problem and the fix?

I am having a similar issue.

Thanks, Michael
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