If anyone can give me some input it would be great. While driving my lights get bright then dim. The altinator guage will go from aprox 14 volts to well above 18. Back and forth back and forth. Also when the voltage gets high my windows wont roll down and the dome light wont come on. Where should i start on this problem? Is my truck possesed?

 

Go over to Autozone and get your battery and alternator tested. It's a free service, they do it in the vehicle.

 

Yeh.... So my altinator shows good my battery shows good. Done tested them a long time ago, for free at autozone.

 

So if anyone lives near champaign Illinios go to Mr auto electic if you have any electrical problems! 41$ fixed my crazy truck. Voltage regulator, couldnt find one to replace myself for that price.

 

So does anyone have any proof that a throttle body spacer really improves gas milage and horse power. I was thinking of adding one now that i have my altinator fixed and the truck is running smoother. I added a K and N air filter. What are some more ideas to ad horspower to my 4.6? My last f-150 was a 5.4 and would snap your neck. Now i have a 4x4 extended cab and want to beef up my 4.6. should I start looking for a 5.4 or can I squeeze some juice out of the engine I have?

 

You just threadjacked yourself

No throttle body spacers are best used as paper weights.

 

LoL... Whats thread Jacked. My buddy swears by his spacer, I think becouse it whistles like a turbo when he gets on the gas he thinks he is getting more power. thanks for the reply.

 

Yes, TB spacers do make noise. However, they do absolutely nothing else good unless you are using nitrous.

 

Thanks that makes sense. Whats threadjacked?

 

Without spending more than it's worth, you're not going to get more power out of that engine. IMO

 

Changing the topic of the thread to get an answer to a question that was not in the original post.

 

C0ckblocking on the Internet............

 

no quick bolt ons or easy answers?well Ill start looking to make the 5.4 switch. Thanks.

 

LMAO!Your not right.