I noticed the other day when I turn on my 4 ways that my throttle body injectors pulse and squirt fuel in time with the flashers. Any Ideas? Also what auto tranney do they put in these ? It has a TV cable if that helps.
Steve

 

Is this with the engine running or not? Does it stay running while this is occurring? Does it do it only with the hazards on or does it do it with the turn signals? If with the turn signals, Right, Left, or both?

Your truck will have the 700R4.

 

It only does it with the 4 ways on not with the turn signals. Never tried it with it running . Ill try that tomorrow.
Steve

 

Wait, so this occurs when the engine is off?

 

yes it does this with the engine off.I was checking all my lights and heard a ticking noise under the hood. I pulled the air cleaner top off and the injectors were spraying in time with the four ways !