7.3 idi coolant issue

fordmandan87 · 06-30-2010, 09:54 PM

i have an 89 f250 with the 7.3 idi no turbo diesel and i have an issue with keeping coolant in the radiator. with the cap off the coolant will bubble up and out the top even after 30 minutes i keep refilling the coolant after trips as it blows coolant out of the overflow tank i am not quite sure what the problem is but as of yet i have not done any pinpoint test to narrow the problem. has this happened to anyone here before. i will try tp pressure test the system when i can but untill then i am open to suggestions

**RangerSVT** · 07-31-2010, 05:01 AM

Sounds like you have a malfunctioning radiator cap...
SVT

srteach · 08-01-2010, 08:57 PM

or a blown head gasket.

np205 · 09-04-2010, 01:23 AM

or a pin hole in a cylinder wall

06-30-2010, 09:54 PM	#1
fordmandan87 New Member Join Date: Aug 2008 Location: cheektowaga, ny Year: 92 Make: ford Model: ranger Engine: 2.9 Class: 4x4 Used For: Mud Truck Posts: 2 Rep Power: 0 iTrader: (1)	7.3 idi coolant issue i have an 89 f250 with the 7.3 idi no turbo diesel and i have an issue with keeping coolant in the radiator. with the cap off the coolant will bubble up and out the top even after 30 minutes i keep refilling the coolant after trips as it blows coolant out of the overflow tank i am not quite sure what the problem is but as of yet i have not done any pinpoint test to narrow the problem. has this happened to anyone here before. i will try tp pressure test the system when i can but untill then i am open to suggestions

07-31-2010, 05:01 AM	#2
RangerSVT October OTOTM winner Join Date: Mar 2009 Location: Indian Mound, TN 37079 Year: 1996 Make: Ford Model: Ranger 4x4 4.0L ranger 2wd 2.3L Engine: 4.0L Class: 4x4 EXTREME DD Used For: Pulling out 3/4 ton chevys from Turkey Bay Posts: 10 Rep Power: 0 iTrader: (4)	Sounds like you have a malfunctioning radiator cap... SVT __________________ 96 4x4 Xcab 4.0L 5R55E 1354E d35 & 8.8 open, 8" lift, 3"BL, 6 leaf rear spring pack, 4.56's, 37" Irok ROCKS!! Drilled/Slotted front rotorsD44&D60 SAS Under knife, Building V8 TT 96 2wd 2.3L Xcab 5spd Exp 8.8 7/9 static drop on 20's 00 Exploder front end conv Official LBL/Turkey Bay Organizer**

09-04-2010, 01:23 AM	#4
np205 New Member Join Date: Aug 2007 Location: Port Angeles, WA Posts: 7 Rep Power: 0 iTrader: (1)	or a pin hole in a cylinder wall __________________ 96 Ranger 4.0 5 Speed, 4.10's Powertrax rear, 33x10.5 BFG AT's, 6" skyjacker springs, shackles exploder springs 1" blocks, Duff arms and brackets, Xcal2 programmer 92 trq

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08-01-2010, 08:57 PM	#3
srteach New Member Join Date: Aug 2007 Year: 1999 Make: Ranger Model: XLT supercab Engine: 4.0L Class: 4x4 Used For: DD / light OR Posts: 10 Rep Power: 0 iTrader: (0)	or a blown head gasket.

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