I have a '03 5.3 ecsb Z71. I would like to know what kind of numbers I'm looking for with l/term and s/term on my Predator. At WOT s/term is 0% and l/term is 6.25%. What does this mean and are these numbers in the ballpark. Also, where is the damn thermostat on these things? Thanks!

 

You want to look at L-terms,not S-terms...You will need to adjust the injector flow rate to around 4-6% richer to get L-terms back to 0%

 

Follow the top radiator hose back to the water pump, it's right there, the housing is actually part of the stat, not like the older 350's, hence the ridiculous price for the stat. go with a 160, it'll run about 178-185degs.

good luck,

allen