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I have a Ford F350, 7.3 liter diesel, and it has a problem ...

Sent to Car Experts February 15, 2006 8:39 p.m.

I have a Ford F350, 7.3 liter diesel, and it has a problem at idlle. During actual driving, it does not produce smoke, but at idle, even after the engine is warm, it will vibrate for a second when I come to an idle, smooth out, and then puff out white smoke.
I took it to the Ford dealer, they said that two cylinders are down, but the hard part to believe is that it runs like a champ, doesn't smoke, or hesitate during acceleration. It runs perfect.
Any ideas ?
Thanks,
Jeff

Optional Information:
2001 Ford f350 7.3 liter diese

Already Tried:
Ford dealership..details of their findings in message

Customer (name blocked for privacy)

Status: Closed Value: $10

Info Request
February 15, 2006 8:40 p.m. (1 minute and 2 seconds later)

Thanks for the question.

Did the dealer have any codes?

__________________
FORD MOTOR COMPANY CAR AND POWERSTROKE SPECIALIST FOR OVER 16 YEARS. ASE MASTER SINCE 1991. CURRENTLY WORK AT A MAJOR FORD DEALERSHIP. GIVE ME YOUR FORD PRODUCT QUESTIONS, IF I HELPED, PLEASE HIT THE ACCEPT BUTTON. EXPERTS QUESTIONS ON FORDS WELCOMED

Fordanswerman -- Auto Service Technician -- 98% Positive Feedback on 262 Car Accepts
Ford Engine Master/Transmission Master/Chassis Master=Ford Senior Master also Diesel 7.3/6.0

Reply
Sent February 15, 2006 8:48 p.m. (7 minutes and 39 seconds later)

Yes....but I do not see it on the form...I am still looking....they said it only had 200 psi on cylinder #6 and #8

Customer (name blocked for privacy)

Info Request
February 15, 2006 8:49 p.m. (1 minute and 23 seconds later)

So they did a manual compression test, yes? And this was the actual compression test for 6 and 8 correct?

Thanks

Fordanswerman -- Auto Service Technician -- 98% Positive Feedback on 262 Car Accepts
Ford Engine Master/Transmission Master/Chassis Master=Ford Senior Master also Diesel 7.3/6.0

Reply
Sent February 15, 2006 8:50 p.m. (34 seconds later)

It states that the KOEO codes checked out, but the KOER found the bad cylinders

Customer (name blocked for privacy)

Reply
Sent February 15, 2006 8:51 p.m. (58 seconds later)

The service tech told me they only used the computer, but teh report states that they pulled the glow plug to test them

Customer (name blocked for privacy)

Reply
Sent February 15, 2006 8:52 p.m. (1 minute and 34 seconds later)

They recommended tearing the engine down.....14 hours of labor at 85.00 per hour?

Customer (name blocked for privacy)

Answer
February 15, 2006 8:57 p.m. (4 minutes and 36 seconds later)

ACCEPTED

Well that is not good. These 7.3 new will be around 450 psi for compression. Sounds like you might have a possible blown headgasket. Or may have some other mechanical issue in those cylinders. These are right next to each other. It may just be a blown head gasket, or it could be bad rings. The KOER will pick up the low cylinders, and then you do a mechanical compression test. I would be real curious of what the other cylinders are as far as compression goes. This way you can get a better assesment of your engines condition.

If it was my vehicle, I would have them do a compression test on the rest of the cylinders. This also will tell you if there compression tester is calibrated right.

Thanks

Fordanswerman -- Auto Service Technician -- 98% Positive Feedback on 262 Car Accepts
Ford Engine Master/Transmission Master/Chassis Master=Ford Senior Master also Diesel 7.3/6.0

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