Hi there. Just traded my 85 F150 on a 97 F150 XL with 4.2, 5speed. I love the truck but miss my old beater. Anyway, I have a small problem. Under load, like accellerating(sp?) or pulling a small hill it will cut out/ miss fire. It's not real bad or very regular. In fact if your not paying attention you might not even notice it. It does have a cat that's rattling, getting it replaced tomorrow. Other than that it runs like a dream. Any ideas?
Thanks
Keith

 

How's the fuel pressure???

 

I haven't had a chance to check it yet.. Just got it yesterday and it's in the shop getting a new exhaust system today..

 

wait, you're putting a stock exhaust on it?? whats wrong with you?

 

Well not completely stock. Just cat's an a 40 flowmaster.

 

oh thats pretty sweet then actually.. are you running just one pipe or duals?

 

Just running the single pipe for now... Thinking about duals all the way to the rear maybe later.

 

everyone goes on and on about duals, but i would like to run duals out of the headers of my 302 and into a dual in single 3" out flowmaster 40 series. unfortunately they don't make such a thing, but oh well, i can dream. I think it would sound awesome cause the single 3" pipe would lower the tone of the exhaust and since i don't have a big cam separate pipes have no advantage sound-wise.

 

everyone goes on and on about duals, but i would like to run duals out of the headers of my 302 and into a dual in single 3" out flowmaster 40 series. unfortunately they don't make such a thing, but oh well, i can dream. I think it would sound awesome cause the single 3" pipe would lower the tone of the exhaust and since i don't have a big cam separate pipes have no advantage sound-wise.

 

i believe the wider the pipe diameter you go up the more you're going to mess your computer chip up..

 

i had the same hesitation problem when i bought my truck. changed the plugs and everything was fine after that

 

Thanks DRIZZT, I hadn't thought about that. It just got a transplant out of a 99 with 41k miles so that didn't even enter my little pee brain. I'll give that a shot. Had the codes checked today and everything looked good so that didn't help any.
Keith