To cruise, or not to cruise??

[Raccoonjoe]

I will have to look into the wiring for my CC modules. I'm not the most comfortable with hacking into the wiring if I don't have to.....

I was looking more into something like this -- http://www.jeepforum.com/forum/showthread.php?t=311475 Not only will this allow me to maintain throttle position, but it will also allow me to control idle speeds in the case that I need to (i.e. running a winch, several lights on the job site, OBA, heavy use of pwr. inverter, jump starts, etc.....) Again, the only thing I'm slightly concerned about is the "oh sh*t" situation. Antoine, I'm not sure exactly how my Jeep will react to both brake and throttle. The 4L puts out one hell of a lot of HP and torque, especially on the low end of the power band.....But it may be something I have to deal with.

[GasSavers_Red]

Originally Posted by Raccoonjoe

I'm not sure exactly how my Jeep will react to both brake and throttle. The 4L puts out one hell of a lot of HP and torque, especially on the low end of the power band.....But it may be something I have to deal with.

You won't stop in 4L, and you will slow down in 2HI and 4HI but if its is going heavy on the throttle you brakes aren't going to do much. In a panic situation you would might want to just leave the throttle alone and drop the tranny into neutral. It'll redline and sound like its going to blow up, but you will stop.

Most hand throttles, either RE or home made come with a cable lock to keep it in a single position.

Since the ECU used in later 4.0s are based off the Renix ECU I'm assuming that cruise control works the same. Meaning that it takes its reference signals off the VSS on the t-case's tail cone to figure out speed. It gets all directives from the ECU though, so I don't think it would be that easy to intercept the signal.

[GasSavers_scostanz]

Originally Posted by Red

You won't stop in 4L, and you will slow down in 2HI and 4HI but if its is going heavy on the throttle you brakes aren't going to do much. In a panic situation you would might want to just leave the throttle alone and drop the tranny into neutral. It'll redline and sound like its going to blow up, but you will stop.

I'm going to have to disagree with you on this one. I've never seen a vehicle with good brakes where the engine could overcome brakes that were solidly applied. Your stopping distance would be greater but you will stop. I used to drive a semi many years ago and had the trailer brakes lock up while going down the freeway....brought me to a complete stop pretty quickly even with full throttle and the engine had close to a 1,000 ft/lbs of torque.

-- Scott

[GasSavers_Red]

Originally Posted by scostanz

I'm going to have to disagree with you on this one. I've never seen a vehicle with good brakes where the engine could overcome brakes that were solidly applied. Your stopping distance would be greater but you will stop. I used to drive a semi many years ago and had the trailer brakes lock up while going down the freeway....brought me to a complete stop pretty quickly even with full throttle and the engine had close to a 1,000 ft/lbs of torque.

-- Scott

Usually, yes the brakes can stop the car, but atleast on my Jeep the brakes suck royally. I tried it once, engine wanted to stall, but it kept lurching forward.