Is there a way for me to check to see if my truck has ever been reprogrammed with a programmer. I'm the second owner an at times I think it has been. Or I am just used to a four banger at times. Had a 2.5 ranger before this truck it's a 4.2. I've just always wondered if there was a way to figure out weather or not it has had a programmer on it. I wonder cause everyone I see talking about how slow and weak a 4.2 is I I really don't think mine it bad at all. It's got power even when pullin a trailer. Just something I've always wondered about. Thanks for any info/help.

 

I'm not sure there is a way but I think the 4.2 is a very peppy motor I worked on a guys truck that was a reg cab short bed with the 4.6 and it was super slow I know my 4.2 would have beat him easy have beaten some 4.0 Jeeps too

 

Well he needed to change the spark plugs or something there's no way a non boosted 4.2 could beat a 4.6 single cab short bed. my 5.4 single cab short bed 4x4 eats my cousins 4.2 single cab short bed 2wd w/stick i go like 60% throttle and he's nowhere to be found. My straight 4 jeep can keep up with him till like 35. lol once raced a 4.6 singlecab shortbox 4x4 and i won by like 2 car lengths in a 0-60.

 

Yeah maybe it needed some kind of help though

 

Yeah but for a v6 the 4.2 does pretty good. my cousins was oober slow then he change the plugs to the Bosch four prong and wires and that woke her up pretty good he can squeal the tires which i thought was amazing. lol

 

Yeah those are the plugs my truck is running plus I just cut the cats off and freed up the exhaust

 

Only way I am aware of how to check is to use a tuner to pull the codes out or have Ford check the PCM code.

 

That it is. Mine truck very peppy. That's y can't help but wonder if it's been tuned.

 

I was reading some where the 4.2 has more power per cylinder than the 4.6. I was reading that I didn't say it personally before y'all start tellin me there no way. So don't kill the messenger LOLOL.

 

I've got 265/75/16 maxxis mudders and I can light em up from dead stop on flat ground. Leaving smoke. I don't like to do it it's a waste of money. Gas and tires. 4.2l engine not too shabby. That's y I wonder if mine has been tuned.