Strange problem with 93 IDI
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Senior User
Joined: Jun 2007
Posts: 188
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Strange problem with 93 IDI
Checked out the truck. Looks great, started right up, very clean, 117K miles, Almost no rust on the underside, but I revved the motor and it wound up but when going back down to idle it died. It did this every time after revving. There is a vaccum solenoid actuating an arm on the exhaust portion of the turbine so I am not sure if it is a wastegated turbo. The ATS turbo was purchased in '97 at around 80K miles. I thought it maybe a turbo issue causing it to die after revving but wanted to see if anyone has some insight into the cause of this issue.
Senior User
Joined: Feb 2009
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From: Westfield, MA
Take the fuel filter off, dump out the fuel then fill it with Automatic transmission fluid. Run it for about thirty seconds then shut it off and let it sit for a couple of hours. Now take it for a drive and see how it does. There is a govenor linkage inside the IP that can get sticky which causes the IP to not recover to idle fast enough and it dies. Use the search you will find several posts with people that have had this same problem and fixed it with ATF or Seafoam.
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
And the "vacuum solenoid actuating an arm" is actually operated by boost pressure.
Waste gate actuator is a better name.
There is a spring inside that holds the waste gate closed.
As boost pressure increases in the intake, the spring is overpowered by that pressure to open the waste gate allowing exhaust gasses to bypass the turbo and limit boost pressure.
Waste gate actuator is a better name.
There is a spring inside that holds the waste gate closed.
As boost pressure increases in the intake, the spring is overpowered by that pressure to open the waste gate allowing exhaust gasses to bypass the turbo and limit boost pressure.
Senior User
Joined: Oct 2006
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From: Bath, Michigan
[quote=78sharpshooter;7857469]Checked out the truck. Looks great, started right up, very clean, 117K miles, Almost no rust on the underside, but I revved the motor and it wound up but when going back down to idle it died. /quote]
My truck, although not turbo'd, did the exact same thing (died after revving) when I was looking at buying it. Dave Sp. suggested the filling of the new fuel filter w/Diesel Kleen, and it worked like a charm! It stopped dying after only about 25 miles of driving, and has driven fantastically for almost 50K miles now.
My truck, although not turbo'd, did the exact same thing (died after revving) when I was looking at buying it. Dave Sp. suggested the filling of the new fuel filter w/Diesel Kleen, and it worked like a charm! It stopped dying after only about 25 miles of driving, and has driven fantastically for almost 50K miles now.
