Top notch customer service!

I installed my Accufab throttle body a couple of days ago. I had a serious problem with the throttle sticking closed. I spoke with John Mihovitz, who owns Accufab, and he said come on by, we'll take a look.

I motored on over there this afternoon, and he personally checked out and removed the throttle body from my truck. They readjusted the throtle plate, and reinstalled it himself. PROBLEM SOLVED.

Customer service doesn't get any better than this.

 

And people complained about a small time guy, BABolt, about his TB sticking or whistling. Sounds like even the Major companies can see the small problems after having them a while. :o

 

Jay Lincoln

I just bought an Accufab throttle body and put it on my truck. I have had nothing but problems with it. After instalation my truck wouldn`t idle below 1500 rpm, so I readjusted the throttle plate and got the idle down to 1000 rpm, still to high, so I took the throttle body off my truck, took the throttle plate off and filed the edge a little so it would seal better when the throttle plate is closed, my truck is now idling at about 750-800 rpm, still a little high, ive had this throttle body on and off my truck at least a dozen times and its still not right. With the throttle body installed the added power and throttle response very noticable. When you pay over 400 dollars for a part you expect it to work with no problems. And im just one of several that have had problems with this part. Is it worth the performance - yes, Is it worth the problems - you decide.

Larry

 

I just put my accufab throttle body on and I have had no problems with it at all. Hmm well I hope u get all your problems figured out.

 

send it back to them. Or I can take it off your hands.

You mean you filed the Throttle blade?? Why?

 

speeder,

There's a stop screw you know. You can easily adjust the idle speed with that. Also, a problem I had before was a bad TPS sensor. Check that out as well.

 

speeder, your TPS is probably not adjusted properly. You will have to turn the holes into slots using a small rattail file. You should set your TPS voltage to about .95-.98 with a digital multimeter. that should get the idle back down to normal. Like rob said, you may need to set the idle stop screw, but I would check the TPS voltage first.

Mine runs great now.

 

I have the stop screw backed out all the way, its not touching anything. Its possible that my TPS sensor is not adjusted properly, I don`t have a digital volt meter to check it, guess ill have to get one, witch wires do I test?, the wire colors are as follows - top wire is brown with white stripe, middle wire is gray with white stripe, bottom wire is gray with red stripe.
This may be a stupid question, but how does the TPS sensor affect the idle?.

Thanks for the help.

Larry.

 

Larry, just remove the plug off of the TPS. The center connection of the three, is the only one you need to be concerned with.

I didn't puncture the insulation, because it will eventually corrode. I took a small strand of wire (.010") about 2" long, and slipped it into the center of the female connector. Then I just put the connector onto the TPS, allowing the small wire to conform to the shape if the inside of the connector. That should leave about 1/2" outside the connector to hook your meter to.

Set the meter to 2 volts, and hook the positive lead to the wire, and the negative to the battery GROUND. Do not let this lead touch any ground. It may damage the PCM.

Turn on the key, but don't start the engine. Take a voltage reading. The Ford manual says .53 to 1.27 volts is accepatble. Nada. it's got to be less than 1.00.

If you cannot rotate the TPS enough to get it down to about .95. you will need to file the holes into slots. I needed to file quite a bit to make it work.

When you are done, set the meter to 20 volts, and make sure you are up around 4.6 volts at full throttle opening.

Start the truck, and double check the voltage. I will probably raise about .3 volts.

BTW, use red loctite on those throttle plate screws.

 

but how does the TPS sensor affect the idle?.

Think about it . The Throttle Position Sensor tells the computer the throttle is at a certain position. . The PCM needs to know if the throttle is closed to adjust for fuel, etc. Same thing when it's at WOT. The throttle shaft is connected to the TPS and turns a potentiometer(I think?) inside the the TPS to change the voltage levels for the different positions. It's a pretty neat deal .

Dan

 

Hey guys not for anything but for almost 500.00 to your door shouldn't these problem be worked out before the part is ever shipped, I can see maybe adjusting the throttle postions sensor but having to file fit parts to make them work is not acceptable, for 500.00 it should drop in and be set to go. just my .02. Todd

 

My thought exactly

 

I agree completely, it should be 100% drop-in and go. However, there's ALWAYS some adjustment to be made - how would they get around the TPS issue? Even if they threw in a NEW TPS, you'd still need to adjust it... Right?

 

Nope! My BaBolt th/body came with a new TPS and no adjustments to it were needed.

Dan