T/B only opening 84%!!
08-03-2009, 09:46 AM
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T/B only opening 84%!! ok, so i messed with the adjusters on the cables and have the cable tight when it is completely closed. It almost seems like the gas pedal is bent??? its pretty close to the floor. anyone have any other idea's or maybe a approximate height that the pedal should be offthe floor with out the floor mat in the car.
08-03-2009, 10:09 AM
#4
do you have traction control? If so I think there is an adjustment near or in the control box over on the fender. Something else what year is the car? If it's a 99 up maybe somebody put the 98 throttle body on it. They have a smaller cam arm where the cable hooks. That makes the cable too long and will not allow 100% throttle
08-03-2009, 10:13 AM
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yes it has T/C i did mess with both adjusters. I also have different T/B on it. When i did the 402 i never bothered to check the T/B % i know before it was 100% ...i think this is my 3rd t/b since i blew up the stock motor lol. I guess i can pull it off and see if i can check the #'s on it. I want to say it was off an 00 or 01 truck.
my camera charger is at my ex g/fs and i cant get it back .... well atleast yet. Trending Topics
08-03-2009, 01:51 PM
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Mvvette does have a point here, if you've got the wrong TB on, the cable may have a longer route to travel around the arm of the TB. Here is a pic comparing the two throttle bodies:
The TB on the car has a longer route for the cable to follow and thus making the blade not opening all the way when all the slack was out of the adjustment.
The TB on the car has a longer route for the cable to follow and thus making the blade not opening all the way when all the slack was out of the adjustment.
08-03-2009, 01:59 PM
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24642 is stamped on the cam of the t/b on the car the one i took off has 24944 stamped on the side and it is about 3x wider where the cable runs
08-03-2009, 02:04 PM
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I have played with early, late and aftermarket TBs and
while the shaft cams are different, early to late, the
amount of cable drar from closed to full open is near
identical. Just the profile of opening vs draw is different,
the late ones need more draw at the lower end (so less
"responsive", probably just slightly better fuel economy
or something under test conditions).
Bend the pedal arm. Also be sure the TCS pulley cluster
is not a hangup; wasn't, stock, but aftermarket it was a
bit short. So I removed that (went to non-TCS cables).
while the shaft cams are different, early to late, the
amount of cable drar from closed to full open is near
identical. Just the profile of opening vs draw is different,
the late ones need more draw at the lower end (so less
"responsive", probably just slightly better fuel economy
or something under test conditions).
Bend the pedal arm. Also be sure the TCS pulley cluster
is not a hangup; wasn't, stock, but aftermarket it was a
bit short. So I removed that (went to non-TCS cables).
Last edited by jimmyblue; 08-03-2009 at 03:23 PM.
08-03-2009, 02:42 PM
#12
the reason In said about the cam arms on the throttle body is because I put a 98 tb on mine and had the exact same problem. I ended up sliding the cable back where it mounts to the intake. The plastic sleeve that sets in the metal bracket on the intake will allow the plastic part of the cable to slide back. It's kinda glued from factory but I was able to work it loose and slide the cable back and put a small clamp around the cable to keep it from sliding back in. I'll post a pic of it so you see what I'm talking about
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08-03-2009, 03:33 PM
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so... i took the cable out of the metal holder and put it behind the metal holder with a small washer to hold it there and it works perfectly now!!!!
i feel like an idiot it was something that simple...been messing with different things for hours now!! thanks much for that tip and thanks to everyone else that helped too!
i feel like an idiot it was something that simple...been messing with different things for hours now!! thanks much for that tip and thanks to everyone else that helped too!