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89 cutlass sierra TPS adjustment



 
 
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  #1  
Old August 26th 06, 02:09 AM posted to rec.autos.tech
Trav
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Default 89 cutlass sierra TPS adjustment

Is there anyway to adjust the throttle position sensor.

Tried putting a used one in but still same results. While going down
the road the car pulses and surges, kind of loses power and slows then
jumps back up.

its a tech 4 2.5 ltr

sounds like a diagnostic comes back as the TPS is low.

The car belongs to my girlfriends father so I havent driven the vehicle
yet, thanks for the help in advance.

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  #2  
Old August 26th 06, 09:40 AM posted to rec.autos.tech
jeffcoslacker[_32_]
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Default 89 cutlass sierra TPS adjustment


Simple answer, no.

Don't chase your tail with used electric parts. A new TPS should be $35
or less. Get it.


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  #3  
Old August 26th 06, 02:37 PM posted to rec.autos.tech
Shep
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Default 89 cutlass sierra TPS adjustment

Used, silly, agree with Jeff.
"jeffcoslacker" > wrote in message
...
>
> Simple answer, no.
>
> Don't chase your tail with used electric parts. A new TPS should be $35
> or less. Get it.
>
>
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> jeffcoslacker
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  #4  
Old August 26th 06, 03:34 PM posted to rec.autos.tech
« Paul »[_1_]
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Posts: 123
Default 89 cutlass sierra TPS adjustment

Trav wrote:
>
> Is there anyway to adjust the throttle position sensor.
>
> Tried putting a used one in but still same results. While going down
> the road the car pulses and surges, kind of loses power and slows then
> jumps back up.
>
> its a tech 4 2.5 ltr
>
> sounds like a diagnostic comes back as the TPS is low.
>
> The car belongs to my girlfriends father so I havent driven the vehicle
> yet, thanks for the help in advance.


The tps' wipers wear the carbon strip.
I have not seen the tps on your car but every other one I have seen has some sort
of adjustment. Most have slotted screw holes - loosen and rotate.
Set to _around_ 0.5v at idle to 4.5v at wot.
  #5  
Old August 26th 06, 03:53 PM posted to rec.autos.tech
Knifeblade_03[_23_]
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Default 89 cutlass sierra TPS adjustment


http://tinyurl.com/r3dww

Seems that if ya really wanted to play, you could adjust the screw, but
like above posters said, get a new one, messing around with a used
one/trying to adjust it, most likely will create more trouble and waste
of time than worth.


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  #6  
Old August 27th 06, 05:20 AM posted to rec.autos.tech
[email protected]
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Posts: 30
Default 89 cutlass sierra TPS adjustment

> Tried putting a used one in but still same results. While going down
> the road the car pulses and surges, kind of loses power and slows then
> jumps back up.
>
> its a tech 4 2.5 ltr
>
> sounds like a diagnostic comes back as the TPS is low.
>
> The car belongs to my girlfriends father so I havent driven the vehicle
> yet, thanks for the help in advance.


I would try a new switch and make sure the connector pins are clean and
tight, i.e. no corrosion. If in doubt take the connector apart and
solder the pins to the wires. This type of problem might also be due to
a poor ground causing erroneous readings. Bad grounds can cause all
sorts of drivability issues.

Good luck with it.

Chris

 




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