75mm throttle body sucks
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Senior Member
Joined: May 2001
Posts: 110
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From: Topeka,KS USA
75mm throttle body sucks
I installed this Edelbrock/BBk throttle body on my 2000 150 w/ 5.4 and it will not idle at 600rpms when you let off slowly,it idles at 1250,but when you snap the pedal it will. I diconnected all the linkage and had the same results. The instructions said diconnect the I.A.C. connector. Where is this? The tech support at Edelbrock said call BBK and BBK said that they did not know and I should talk to an engineer!
Senior Member
Joined: Mar 2000
Posts: 685
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From: Cincinnati, Ohio
The IAC is usually right on the throttle body, and has a small motor on it. There are some wires coming out of it. It allows air to bypass the throttle body's blade at idle. The ECM controls it to maintain idle. You may be bypassing too much air. Some TB's have a hole in the blade large enough for idling, and some allow it to enter around the outside edge of the blade.
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2000 F150 XLT 4x4 Short Bed. Amazon Green, 5.4L, SuperCab, ORP, Tow Package, Sliding Rear Window, Electronic Shift, Keyless Entry, LT265-70-17 Tires, Clarion Pro Audio, Herculiner Bedliner, Air Silencer Removed.
1994 SVT Mustang Cobra. #1032 of 6009. Black coupe with black leather int., 3.73 rear, Bassani Exhaust, Aluminum D/S, Bridgestone RE-71 255-45-ZR17
My Home Page
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2000 F150 XLT 4x4 Short Bed. Amazon Green, 5.4L, SuperCab, ORP, Tow Package, Sliding Rear Window, Electronic Shift, Keyless Entry, LT265-70-17 Tires, Clarion Pro Audio, Herculiner Bedliner, Air Silencer Removed.
1994 SVT Mustang Cobra. #1032 of 6009. Black coupe with black leather int., 3.73 rear, Bassani Exhaust, Aluminum D/S, Bridgestone RE-71 255-45-ZR17
My Home Page
Senior Member
Joined: Jun 2000
Posts: 1,167
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From: Anchorage
I'm sorry you're having these problems with the throttle body. I figured Edelbrock would help you out instead of blowing you off. I hope everything works out ok.
Bill
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1999 4x4 F250 LightDuty XLT SuperCab 5.4L, 3.73, 4R100 trans.
Flowmaster exhaust, K&N FIPK, Superchip, Rancho RSX shocks, Hellwig rear swaybar, Stull billet grille, PIAA Air Dam with 2-PIAA Pro80XT's (85W Superwhites), 4-KC Daylighters (150W), Leer 100XL Shell, Performance Accessories 3" Body Lift, 33/12.5/17 ProComp Mud Terrains on 17x8 American Racing Atlas Rims. Kenwood 7007 CD, Alpine 3342 Signal Processor, Alpine MRV-F353 5Ch. Amp, Pioneer TS-A6865 3-way speakers, MTX Thunderforms. CompuStar alarm/autostart.
Bill
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1999 4x4 F250 LightDuty XLT SuperCab 5.4L, 3.73, 4R100 trans.
Flowmaster exhaust, K&N FIPK, Superchip, Rancho RSX shocks, Hellwig rear swaybar, Stull billet grille, PIAA Air Dam with 2-PIAA Pro80XT's (85W Superwhites), 4-KC Daylighters (150W), Leer 100XL Shell, Performance Accessories 3" Body Lift, 33/12.5/17 ProComp Mud Terrains on 17x8 American Racing Atlas Rims. Kenwood 7007 CD, Alpine 3342 Signal Processor, Alpine MRV-F353 5Ch. Amp, Pioneer TS-A6865 3-way speakers, MTX Thunderforms. CompuStar alarm/autostart.
Senior Member
Joined: May 2000
Posts: 1,002
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From: Oregon
IAC= Idle air control
It is a valve as stated that leaves the butterfly closed and the computer to compensate for the idle.
What I would do is get a 5/16" drill bit and drill a small hole in the butterfly. People have done that on the BBK/Edelbrock TBs for the stangs and clears it right up!
Always start small and then go larger on the hole size.
It is a valve as stated that leaves the butterfly closed and the computer to compensate for the idle.
What I would do is get a 5/16" drill bit and drill a small hole in the butterfly. People have done that on the BBK/Edelbrock TBs for the stangs and clears it right up!
Always start small and then go larger on the hole size.
Senior Member
Joined: Jul 2000
Posts: 5,116
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From: Houston, by way of every major city in America.
It seems I remember something about the cable length,or the throttle return spring,but I can't remember. Lets see if Neal will pick this one up? Neal??,,,,98
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98 F-150 4.6 Litre XLT2wd Ext. cab
Yokahama AVS/ST's,,too noisy
prarie tan/tan int.
K/N gen.II fipk
custom dual exh/gibson rectangle tips/rear exiting.
color matched snuglid
Superchip!!!
Clear front corners
Speedglo gauges w/carbon fiber overlay
Carbon fiber Grant styling ring wheelcover
Stillen Quad light air dam,with Pilot PL-240 driving lights
Billet third brake light cover/oval pattern
Euro taillights,with APC red bulbs
Cobra 75WXST cb w/weather alert
Kenwood cd w/Radio Shack speakers,and Soundstream P203e amplifier//Single 10" sub
Viper alarm
On the waywheels,tires,Proglass shaker hood,Steel Horse C5 leather seat
Come see my new pictures@ www.my-f150.com
WOW,what a cool site!
FENDER GUITARS ROCK!!!
Now,if it only looked like this in real life
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98 F-150 4.6 Litre XLT2wd Ext. cab
Yokahama AVS/ST's,,too noisy
prarie tan/tan int.
K/N gen.II fipk
custom dual exh/gibson rectangle tips/rear exiting.
color matched snuglid
Superchip!!!
Clear front corners
Speedglo gauges w/carbon fiber overlay
Carbon fiber Grant styling ring wheelcover
Stillen Quad light air dam,with Pilot PL-240 driving lights
Billet third brake light cover/oval pattern
Euro taillights,with APC red bulbs
Cobra 75WXST cb w/weather alert
Kenwood cd w/Radio Shack speakers,and Soundstream P203e amplifier//Single 10" sub
Viper alarm
On the waywheels,tires,Proglass shaker hood,Steel Horse C5 leather seat
Come see my new pictures@ www.my-f150.com
WOW,what a cool site!
FENDER GUITARS ROCK!!!
Now,if it only looked like this in real life