Will a remote car starter work on a diesel engine, specificaly a 2002 Ford F-250 Superduty 7.3L Diesel?

Yes. Go to www.bulldogsecurity.com
You just need to set the delay time longer, but dont worry, they tell you how to do that. Very simple really.

Thank you.

you would be much happier with a crimestopper unit...has a lot of on board features to eliminate issues with remote starting

Well if you set the delay time on it to be longer it might. You have to remembet your glowplugs need to be ready before it will start. Like I said before, go to www.bulldogsecurity I hate to tell you it will when actually it might not. Good Luck!