No Power in 96
- Thread starter MotleyCrueCab
- Start date
powerhungry07
Registered User
Im new to diesesl and my 97 psd is doing the same thing almost to the t. engine light comes on i have no throttle response in rpms and i just coast for 5 secs mayb then light goes off and runs fine. Well fine being under powered lower fuel economy, and very lazy feeling any ideas????
has 180k miles all stock 5spd if it helps
has 180k miles all stock 5spd if it helps
cm1hedge
Full Access Member
X2 My mom's truck did the exact same thing a few years ago. Dealer replaced UVCH, Valve cover gaskets, and the external harness. Just out of warranty.
sethc24
Registered User
Agree with above post. But it could be the connector inside the valve cover has come off or worked loose or something. I dunno a thought.
mahatma171
Registered User
Any progress? The UVCH does sound like a likely candidate here. One short in that and that would cause half of your injectors to go silent. Plus it would turn on your CEL. Once the circuit closes, it will run normally and the CEL would go out.
MotleyCrueCab
Registered Abuser
This truck has been put on the back burner until later this week... We start bear baiting this week so i've been working on out Yota Snow runner.... I will give progress updates when i can....
To check out the UVCH. Just disconnect one side at a time while running, if the engine stalls it's the opposite side that's bad.
MotleyCrueCab
Registered Abuser
One side at a time? THere are 4 connectors, fr, fl, br, bl? So do you mean one corner at a time?
82F100SWB
Full Access Member
The Late 97's and the S/D's run one plug per side.
If you have a shorted connector and it's running on 4, unplugging the offending connector will let it pick up the other 2 cylinders on that bank.
If you have a shorted connector and it's running on 4, unplugging the offending connector will let it pick up the other 2 cylinders on that bank.
MotleyCrueCab
Registered Abuser
Its a 96, so as far as i can tell its got 4 connectors. Also on an interesting side note. THe problem is much worse and more consistent when its cold. Went to start the truck today and move it to the shop.... but its too cold won't start . Plug it in for a bit and it starts and does the same run good/ runn crappy thing.
Just start unplugging one side at a time, you'll see if there is any difference in the engine running. Just be aware there is pulsed 120VAC on those plugs coming from the IDM.
MotleyCrueCab
Registered Abuser
So I think I figured it out.... the front prong on the rear driver side connector is a little burnt. Unplug it and the truck runs on on six cylinders, plug it back it and it runs worse and really ruff, much worse when cold, only occasionally when warm. Does it sound like all I need is the UVCH, or are there any other likely culprits? where's the best place to get the harness, and does anybody have part numbers. the plug is definitely a problem, can i replace just the two plugs, or do i need to do the whole harness?
Thanks
Thanks
aaklingler
Registered User
You should be able to just replace the plugs, should be able to get from ford or international.
Valve Cover Harness Repair Kits (contains 4 hard shells w/seals, w/o terminals)
(Ford) F7TZ-14489-BA (94-96)
(Ford) F7TZ-14489-AA (97)
(International) 1830829C91 removal tool and Shells w/o pins
(International) 1661875C1 Pins
(International) 2501055C1 Pins with 6" wire
Valve cover harness replacement terminals:
Industry P/N 103935; Winzer Distributing (1-800-527-4126) selection number D52
Valve Cover Gasket (94-97)
(Ford) F4TZ-6584-A
(International) 1818350C2
Valve Cover Harness, under valve cover
(Ford) F4TZ-9D930-K (94-97)
(International) 1815923C92 (94-97)
MotleyCrueCab
Registered Abuser
Got the truck working. Pulled of the Valve cover and the plug was burnt and almost crumbling away. Called the ford dealer and he told me it would be about $600 for the part from them, but that they actually get it from the local O'Rilies auto parts store. $72 later and she's running good.
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