injector
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6.9 IDI Knocking sound at low rpm
I know there has been a million questions with knock but recently I believe I’ve been experiencing some fuel knock and rough Idling but the odd thing is that it goes away after a certain rpm/load on the engine and runs perfectly smooth. Is this a timing issue or an injector issue? (All my...- LordTachunki
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- 6.9 idi injector knocking
- Replies: 4
- Forum: 6.9L IH & 7.3L IDI Diesels
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Idi injector style - threaded and sleeveless
So just starting to get my hands wet with injector work - not on the idi yet but another small diesel engine. Pulled the injectors on a Volvo penta and they are press fit with copper sleeves. This actually seems to be somewhat standard from what I can see? My only other frame of reference are...- rreegg
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- injector
- Replies: 5
- Forum: 6.9L IH & 7.3L IDI Diesels
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Need help with fuel problems!!!!!
New member here, first time poster, long time reader. I have a beautiful black '89 f350 long bed single cab 7.3 n/a with the zf5 sitting on 35's that i absolutely LOVE!!!! The past week however has me dangerously close to shoving it off a cliff and walking away. My problem all started with...- Big-Black-Beast
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- 7.3l idi fuel problems air intrusion fuel line injector new lift pump starts runs dies
- Replies: 31
- Forum: 6.9L IH & 7.3L IDI Diesels
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Help with hollow engine sound after bad injector
Hello all, This is my first diesel and I’ve been through it and learned a ton but still new and need some help. 7.3 idi I recently had an injector knock that went away after soaking the injectors in Lucas injector cleaner, so I took the beast on a road trip when the knock came back as well as...- Meatloaf326
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- compression growl idi injector injector knock
- Replies: 20
- Forum: 6.9L IH & 7.3L IDI Diesels
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Air bubbles in clear fuel return line
i have air bubbles in my fuel return line, the clear one that goes back into the IP. Usually you don’t see them until you tap the start of the line down near the injector at the front driver side. It has screw down clamps on the hose, tightened those to see if it would help and the bubbles...- Minuteman96
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- 7.3 fuel 7.3 idi air intrusion injector return line
- Replies: 8
- Forum: 6.9L IH & 7.3L IDI Diesels
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White smoke when at low throttle/coast on descents
1990 f250 with 7.3 idi, 141k, mostly stock When going down long and straight descents, I have the throttle very lightly down, just enough to fully engage the transmission and the truck has a lot of mostly white smoke coming out of the exhaust. This will also happen when coasting in gear, but...- Michael Alvernaz
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- elevation idi injector white smoke
- Replies: 3
- Forum: 6.9L IH & 7.3L IDI Diesels
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Injector problems?
I recently changed my injectors. 7 of the 8 where clean as a whistle (see first picture). However the injector from cylinder #4 (remaining pictures) has definite soot/carbon on it. The strange thing is I'm not sure it leaked past the copper O-ring, the pattern of carbon looks like it came...- jrollf
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- 7.3 idi injector
- Replies: 2
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.3 return line caps
Hey guys, my 1994 frankenstein 7.3 N/A IDI is suddenly having severe air intrusion, the return line from the IP to the front right injector was half filled with air and it would not fire up. The shrader valve on the fuel filter head had next to zero pressure in it after cranking it over for a...- ISPKI
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- 7.3 air intrusion idi injector obs return line
- Replies: 62
- Forum: 6.9L IH & 7.3L IDI Diesels
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'93 7.3 NA IDI loss of power @ 2000rpm runs rough
Hi guys, Ive got a 93 7.3 non turbo idi. I have noticed a fuel leak coming out of the injection pump where it meets the timing gear cover and has suffered from cold start issues. The truck is just now running extremely rough and excessive white smoke especially over 2000 rpm and barely enough...- TGH1117
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- 7.3 idi injection pump injector
- Replies: 1
- Forum: 911 Diesel Down!
