Stalling when come down from higher RPM

Reply Subscribe

Thread Tools

Search this Thread

Sep 11, 2004 | 11:34 PM

yukoner008

Thread Starter

New User

Joined: Sep 2004

Posts: 3

Likes: 0

Stalling when come down from higher RPM

Hello, <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com

ffice

ffice" /><o

></o

>

I have a 1994 F250 with a 7.3l turbo diesel and it has been great. But over the last few weeks it has started to stall when the RPMs drop from about 2000RPM or higher. It starts and ideas without any problems. It is a big problem when you are slowing down to turn and engage the clutch and rpms drop it Stalls. This seems very odd as it only happens when the RPMs are up over 2000, and only when they come down fast. If the RPMs come down slowly it is OK.<o

></o

>

Any suggestions?<o

></o

>

Thanks

Sep 12, 2004 | 12:10 AM

ltfox

Fleet Mechanic

Joined: Oct 2003

Posts: 1,764

Likes: 0

From: CentralEastern Utah

Same thing happened to my old mans 94 idi turbo. After a bunch a useless worring it ended up being a fuel filter. problem fixed. i hope this helps.

Sep 12, 2004 | 07:11 PM

Rg3720

New User

Joined: Jun 2004

Posts: 14

Likes: 0

you can try installing a fuel filter, but most times it will not help, i will tell you how to fix this problem if the filter dose not help, reamove the filter empty it fill it with atf, mercon dextron, a lot of people will tell you this is not good, im telling you it works, i have worked on these engines since they went in to production, you may half to repete this a couple of times, your outher choice is anouther pump anyway, the problem the govoner weight assembly is varnished up and is sticking.

Sep 12, 2004 | 11:34 PM

Spectramac

Posting Guru

Joined: Oct 2003

Posts: 2,438

Likes: 0

From: Monroe, WA

Yeah, it's the inj. pump. Can't hurt, give the atf a try. Usually once they get bad they're too scored to save but....

Sep 13, 2004 | 05:37 PM

Logical Heritic

Posting Guru

Joined: Mar 2003

Posts: 1,291

Likes: 0

Might try marvel instead. Its the friction modifiers that are bad.

Sep 13, 2004 | 05:48 PM

yukoner008

Thread Starter

New User

Joined: Sep 2004

Posts: 3

Likes: 0

Thanks

I tried a new filter and that didnt help. I will try the atf and let you know how it works out. Then maybe a new injector pump.
Thanks for all the help.

Sep 17, 2004 | 06:25 AM

BigGunZ

Senior User

Joined: Apr 2004

Posts: 109

Likes: 0

From: Jax Fla.

Turn up the idle screw (if equipped). Mine does the same thing every other year or so. The idle backs down due to vibration over time. I have fixed this exact problem on mine 3 times within the last 6 years by just turning up the idle slightly.