C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

It ran great yesterday!!

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Old Mar 2, 2008 | 05:47 PM
  #1  
djf85vette's Avatar
djf85vette
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Default It ran great yesterday!!

I recently replaced the radiator in my '85. I also decided to remove some stuff, including all of the HVAC. I then decided to replace all of the vacuum and coolant hoses. Once I got it back together it ran great, for a couple days. I started it this morning and it immediately died. I started it again and was able to keep it running as long as I was on the accel pedal, let off and it dies. As it warms, it gets to the point where it will idle, but not smoothly.

I know I know, check vacuum, fuel, spark. To save time, is there a most likely culprit? What should I check first?

Thanks,
Dan
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Old Mar 2, 2008 | 10:58 PM
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John A. Marker's Avatar
John A. Marker
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Are there any codes being thrown? Check this first as a place to start. Smoke from exhaust? Running rich? Pull a plug and check. When was last time the fuel filter was changed?

I know...you are going to check for Vacuum leaks.....
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Old Mar 3, 2008 | 02:58 AM
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Car Guy 88's Avatar
Car Guy 88
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- as you know check for vacume leaks

-if you disconected the battery and haven't really driven it yet, I find mine must be truned on, warmed up and turned off 7x before the computer will start to take in sensor info, mine always dies when its idling after I have done work until the seven starts is over, not sure if anyone else finds this

-if all else fails mabey the fuel fither's clogged

-Good luck
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Old Mar 3, 2008 | 08:53 AM
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If you don't have a vacuum leak, maybe you have a loose connection at IAC, TPS or CTS.
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