Anti diesel solenoid-L78s

**RUQUIK** · #1 09-26-2007, 07:53 AM

I have a question about the anti-diesel solenoid that came on L78s. Was this on all of them? I have a heavy red wire in my car and it is covered with the same stuff that the temp gauge wire is covered in. I am pretty sure that is what it is for.; Next question, does anyone have one with the brackets and intake bolts?

Thanks
Roy

**Charley Lillard** · #2 09-26-2007, 08:05 AM

It was on the turbo 400 cars but not on the 4 speeds. The later GM harness came with that extra wire.

**RUQUIK** · #3 09-26-2007, 07:35 PM

Thanks Charlie, My car is a t-400 car. You don't happen to know where I might find this stuff do you?

Thanks
Roy

**Mr70** · #4 09-26-2007, 07:53 PM

PM sent..

**92646** · #5 09-26-2007, 09:12 PM

I have one that came off of a 71 Z/28 in my garage somewhere, are they the same? I saw it about 2 months ago while I was looking for some other parts. I will sell it at a fair price if it will work.
Mark Sheppard

nuch_ss396 · #6 09-28-2007, 06:10 PM

This anti-diesel solenoid was not on all L/78 cars. I have
seen early cars without them. The solenoid & bracket are
available from Heartbeatcity ( look on epay ). I don't
know for sure if there was a specific date this unit was
phased-in. The original solenoid part number is all but
impossible to find. Big bucks when they pop-up.

I had looked into this issue several years ago as I was
working on an L/78 THM400 combination for an early build
'69 Camaro. Since the original wiring harness was gone,
I could not verify the existance of the solenoid on this
car. I ended up buying the complete setup anyway just in
case I needed it. Since I never learned the date or
specific reasons this solenoid was installed, I put it on
the back burner.

Nuch

**Mr70** · #7 09-28-2007, 06:16 PM

"I have one that came off of a 71 Z/28 in my garage somewhere,are they the same?"

I wasn't aware of the Anti-dieseling solenoid useage in 1971?
Could you mean the unique 1971 one piece transmission controlled spark advance solenoid & throttle pot?
They incorporated these two devices into one single unit in 1971,then made them seperate again in 1972,after field results showed the two incompatible.

**SuperNovaSS** · #8 09-28-2007, 07:37 PM

Does anyone have a picture of one of these units?

Jason

**Mr70** · #9 09-28-2007, 07:47 PM

Here's one on Ebay...
http://cgi.ebay.com/ebaymotors/NOS-solen...sspagenameZWDVW

**SuperNovaSS** · #10 09-28-2007, 08:13 PM

I have one that looks just like that with a bracket. The part number stamped into is different though. It is DR 1114418. Any idea what this one fits?

Jason

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