one search. all jobs. Indeed
 
 
 

Forums > Job > Diesel Mechanic
 

02 International DT466E- Hard to start
Get new comments by email
You can cancel email alerts at anytime.
Comments (6)

Confused in Normal, Illinois

6 months ago

I have an 02 International 4300 with the 466E. When the truck sits for more than a few hours, it cranks for a long time before it starts. The longer it sits, the longer you have to crank it to get it to start. Once it does start cold, it will miss on at least 2 cylinders before finally hitting on all 6 cylinders. It acts as if there is air in the fuel system and it has to be purged before it will start. All the injector o-rings were replaced this summer because of them leaking oil in the fuel tank. I have read something about oil rail o-rings leaking? Is this different than the injector o-rings that I replace recently? I have installed a new fuel filter too. Any ideas? Thanks!

- Was this comment helpful? Yes / No Reply - Report abuse

wolff956 in Riverside, Connecticut

6 months ago

Check your fuel pressure, it should have 60 PSI and it should also not drop below 20 PSI after being shut down.

The primary culprits of low fuel pressure are the pressure regulator valve on the back of the fuel rail, the check ball located above the screen type fuel filter (small canister behind fuel filter) and possible the fuel transfer pump)

- Was this comment helpful? Yes / No Reply - Report abuse

wolff956 in Riverside, Connecticut

6 months ago

FYI, you should also be monitoring the Hydraulic injection pressure during cranking
it will need at least 400 PSI to start the engine

- Was this comment helpful? Yes (2) / No Reply - Report abuse

Confused in Normal, Illinois

6 months ago

Thanks for your reply! I wasn't aware of this pressure regulator valve on the back of the fuel rail? Is it easy to get at to check?

- Was this comment helpful? Yes / No Reply - Report abuse

wolff956 in Riverside, Connecticut

6 months ago

I have 4900's here at work, you need to remove the engine cover from inside the cab
I find it easier to do if I first remove the passenger seat.
You will see a plastic fuel line coming off the check valve.
After first determining that you have low fuel pressure you can check this valve
simply by removing it from the rail and shaking it, if it rattles it is defective
(the reverse of the old PCV valve test)

You must have never had a problem with the HP oil manifold leaking oil if you don't know where the fuel check valve is at

- Was this comment helpful? Yes / No Reply - Report abuse

Confused in Normal, Illinois

6 months ago

I'll check it this afternoon. Thanks so much!

- Was this comment helpful? Yes / No Reply - Report abuse

Your Reply

change location - create a profile
User Name
 in Beverly Hills, California
Your Comment
Your Email Address
Enter the numbers you see in the box
CAPTCHA Image

Be Reasonable! Be Polite! Please read our Terms of Service and Forum Rules, where it notes that you are responsible for your own comments. You may post anonymously - but we reserve the right to remove inappropriate comments at any time.

RSS Feed Icon Subscribe to this discussion as an RSS feed.