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Proper coolant 7.3 IDI
I replaced the thermostat and radiator on my recently acquired '91 7.3 Turbo. I have flushed with distilled water several times and need to fill it back up with the proper coolant. The previous owner gave me a half empty bottle of Peak "fleet charge" that is pre-charged with SCA from when he...- ManBearPig
- Thread
- Replies: 8
- Forum: 6.9L IH & 7.3L IDI Diesels
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Running Warm Under Load; Using OEM gauge location vs Overtemp sender for gauge?
I bought a 91 7.3 with a "factory" ATS turbo a few weeks ago. I bought it to pull our 9k pound travel trailer (near the truck's comfort level, I know) and haven't really had a chance to put it to work much yet. I bought the truck thinking it was a complete, mechanically sound project but soon...- ManBearPig
- Thread
- Replies: 45
- Forum: 6.9L IH & 7.3L IDI Diesels
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Cold Timing Advance not working
I haven't noticed any adverse symptoms from this, but I've determined my IP timing advance is not working. I didn't even know the truck was supposed to have an advance until I started digging around these forums....dangerous place!!! I replaced the thermostat in the truck yesterday and...- ManBearPig
- Thread
- Replies: 12
- Forum: 6.9L IH & 7.3L IDI Diesels
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ZF-5 Occasionally Won't Go Into Gear
Just bought a 91 IDI with the ZF-5. I have noticed that on occasion, it is very difficult to go into gear from neutral. This is not isolated to first gear. When this happens, I've tried sticking it into all 5 forward gears and reverse in hopes of getting synchros lined up to help slide into...- ManBearPig
- Thread
- Replies: 5
- Forum: 6.9L IH & 7.3L IDI Diesels
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Manual High Idle/Advance
The used truck I just bought has a rocker switch that the previous owner told me was for a high idle. In order to engage the high idle, I can turn the switch on, rev over 1k RPM, and the idle will stay right around 1k RPM until the switch is switched back off. I thought it seemed a little...- ManBearPig
- Thread
- Replies: 26
- Forum: 6.9L IH & 7.3L IDI Diesels
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Replacing a deleted CDR valve/Leaky valve cover
This is my second post here. Just bought a '91 7.3 IDI that has had what appears to be a factory turbo setup put on at some point. The previous owner has had the truck for 15 years, and is not the one who put the turbo on, but says he believes it to be a factory setup. It does have the "Ford...- ManBearPig
- Thread
- Replies: 2
- Forum: 6.9L IH & 7.3L IDI Diesels
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7.3 IDI water temp gauge sender location/size
Hi guys, this is my first post here. I come from a Powerstroke background (I'm most familiar with the 99.5+ 7.3, specifically) but sold my 2002 last year and just bought a '91 IDI as a replacement. I needed something cheaper that would still tow my 9k lb travel trailer. I was actually looking...- ManBearPig
- Thread
- Replies: 14
- Forum: 6.9L IH & 7.3L IDI Diesels
