How can I tell if my truck has a tranny cooler. It is a 1999 F150 4x4 5.4 V8. It did not come with a towing package, unless the previous owner removed it.

Also, are you supposed to disengage the air suspension system when towing? Thanks.

 

All 5.4's "should" have a tranny cooler regardless of towing package. It'll be up front behind the bumper on the lower part of the rad on the pass side. The cooler on the drivers side is the power steering fluid cooler. Many mistake this for an engine oil cooler...... (Actually, the engine oil cooler is incorporated in the coolant system. It passes water over the oil filter adapter......)

Didn't know that F150's had an "air suspension". Thought that was just on the Expeditions. You should check your owners manual, but I 'think' you are supposed to just hitch up your trailer and attach any weight distribution setup and start up the truck. If it needs to level out any more, then it'll just do it. The WD setup is supposed to level you out if it's setup correctly anyway.