You'd have to check. I know the earlier trucks were hit and miss, some had them and some didn't. You can check by looking at the intake pipe (just before the spider) within a foot of going into the throttlebody. If you're standing in front of your grill and facing the firewall (and who wouldn't be) look over your engine dressing cover (that says POWERSTROKE on it) at the intake tube portion behind it towards the firewall. If you have something that vaguely resembles the top of a spark plug sticking out of your intake tube with 2 wires connected to it then you have it. If you have nothing or a plug then you don't.