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Please help. Dont know whats wrong

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Old Mar 26, 2012 | 04:34 PM
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
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Axle/Gears: 2.73
Please help. Dont know whats wrong

I have an 86 T/A 5.0 TPI with a brand new transmission and when i do fast take offs sometimes the engine stays at whatever speed its at and makes a loud click click click noise like something is stuck and it wont speed up.(it does this off and on) it also does it when i remain at a certain speed. But when its parked and i rev the engine it seems to be smooth. What could it possibly be? Im guessing the throttle body but i have no idea. please let me know if anybody has had this problem and knows what the issue might be. Thank You
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Old Mar 26, 2012 | 04:38 PM
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86Trans/AM's Avatar
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
Transmission: Beefed 700R4
Axle/Gears: 2.73
Re: Please help. Dont know whats wrong

Added... its like something is restricting the engine from going faster.
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Old Mar 26, 2012 | 04:40 PM
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Car: 89 Formula 350, TTA
Re: Please help. Dont know whats wrong

could be a fuel issue, and not a transmission issue. failing fuel pump maybe.
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Old Mar 26, 2012 | 04:42 PM
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86Trans/AM's Avatar
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
Transmission: Beefed 700R4
Axle/Gears: 2.73
Re: Please help. Dont know whats wrong

another thing, when it does the noise it also smells like something is burning
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Old Mar 26, 2012 | 04:48 PM
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Car: 89 Formula 350, TTA
Re: Please help. Dont know whats wrong

off the top of my head, i'd say make sure all your spark plug wires are connected to the spark plugs - make sure theres no arcking anywhere (header melting into a spark plug wire perhaps [causing an arc and a misfire].) aside from that, check under the hood for any burned wiring. outside of that, you may have to take it to a shop. if the car wasnt having these symptoms before the transmission rebuild but started having it immediately after, you might want to take it back to the transmission place and have them see whats up.
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Old Mar 26, 2012 | 04:55 PM
  #6  
86Trans/AM's Avatar
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
Transmission: Beefed 700R4
Axle/Gears: 2.73
Re: Please help. Dont know whats wrong

Sorry, didn't specify that it was occurring when i had the old transmission in it... but i did get headers and the spark plug heads are right on them so ill get some heat sleeves and see how that goes. As far as the wiring i had some spaghetti wire covers that melted but didn't melt the wire.... and there are some spark plug wires tied together, could that be a problem?(should they be separated).
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Old Mar 26, 2012 | 05:12 PM
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Car: 89 Formula 350, TTA
Re: Please help. Dont know whats wrong

[quote=86Trans/AM;5224023]

Sorry, didn't specify that it was occurring when i had the old transmission in it... but i did get headers and the spark plug heads are right on them so ill get some heat sleeves and see how that goes.
uh-huh... if the spark plug wire boots ("heads") are already melted to the point that it could cause an arc, then you should replace the wires. however, if you find that they're not melted at all, then they your set up should be fine as is.

As far as the wiring i had some spaghetti wire covers that melted but didn't melt the wire....
melted by the headers?

and there are some spark plug wires tied together, could that be a problem?(should they be separated).
tied together as in ziptied? i dont think that would be a problem, at least not to cause the kind of symptom you're describing.

it could be a number of things, but the "clicking" sound you described made me think of arcking, but then again, i would expect that arcking to be accompanied by an ocassional, slight backfire through the exhaust.
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Old Mar 26, 2012 | 05:15 PM
  #8  
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Car: 89 Formula 350, TTA
Re: Please help. Dont know whats wrong

btw, i cant think of anything that would cause a clicking noise to come from a throttle body. it is possible that you are experiencing symptoms assoiciated with a failing TPS (Throttle Position Sensor) which is located on the throttle body, but i would not expect any kind of audible cue to be associated with a bad TPS.
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Old Mar 26, 2012 | 05:20 PM
  #9  
86Trans/AM's Avatar
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
Transmission: Beefed 700R4
Axle/Gears: 2.73
Re: Please help. Dont know whats wrong

[quote=Linson;5224042][quote=86Trans/AM;5224023]



"uh-huh... if the spark plug wire boots ("heads") are already melted to the point that it could cause an arc, then you should replace the wires. however, if you find that they're not melted at all, then they your set up should be fine as is. "

They are not melted

"melted by the headers? "

Yes and the headers are also wrapped

tied together as in ziptied? i dont think that would be a problem, at least not to cause the kind of symptom you're describing.

"it could be a number of things, but the "clicking" sound you described made me think of arcking, but then again, i would expect that arcking to be accompanied by an ocassional, slight backfire through the exhaust."

yes they are ziptied and the clicking noise is very load... its hard to describe almost like having a card on the wheel of a bycycle and the card smacking the spokes, it last about 6 seconds.

(Sorry dont know how to quote)
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Old Mar 26, 2012 | 05:42 PM
  #10  
86Trans/AM's Avatar
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
Transmission: Beefed 700R4
Axle/Gears: 2.73
Re: Please help. Dont know whats wrong

What about a bad timing chain?
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Old Mar 26, 2012 | 05:43 PM
  #11  
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From: Washington
Car: 89 Formula 350, TTA
Re: Please help. Dont know whats wrong

[quote=86Trans/AM;5224051]


They are not melted
damn. okay.

yes they are ziptied and the clicking noise is very loud... its hard to describe almost like having a card on the wheel of a bycycle and the card smacking the spokes, it last about 6 seconds.
the noise you describe sounds like a substantial exhaust leak, but the symptoms do not match. also, if it were an exhaust leak, the noise would be constant. if no one else here can come up with something, you may have to take it to a shop. i hope it is something simple and not crazy expensive to fix.


(Sorry dont know how to quote)
to quote, simply left click and drag to highlight the text you wish to quote, then left click on the quotation icon

between insert image icon and the # above.

sorry i cant help with your engine problem.
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Old Mar 26, 2012 | 05:53 PM
  #12  
86Trans/AM's Avatar
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From: Lowell, Mass
Car: 86 T/A GTA Rims
Engine: 350 Mild cam 750 holly
Transmission: Beefed 700R4
Axle/Gears: 2.73
Re: Please help. Dont know whats wrong

I think its the timing chain... but thank you for all the help
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