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intermitent problems



 
 
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  #1  
Old March 17th 05, 08:09 PM
shnakebite
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Default intermitent problems

this seems to happen every 3-4 week where my 90 Buick Regal with stall with
any pressure on the gas peddle at first it will lose power but if i step on
the gas and release it will be fine for up to a day.
Twice it would die after warming up and sitting for a couple hour and then
a short trip (2 miles) shutting off the engine and then starting it up
within 45 min.
Right now it's in my garage and will start, idle but if I touch the gas it
dies.
Replaced fuel pump, filter, MAP Sensor.

Any thoughts?

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  #2  
Old March 17th 05, 09:06 PM
Shep
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Look for a crack in the duct between the maf and throttle body if ok get it
scanned and look for proper air flow readings. check fuel pressure also.
"shnakebite" > wrote in message
lkaboutautos.com...
> this seems to happen every 3-4 week where my 90 Buick Regal with stall
> with
> any pressure on the gas peddle at first it will lose power but if i step
> on
> the gas and release it will be fine for up to a day.
> Twice it would die after warming up and sitting for a couple hour and then
> a short trip (2 miles) shutting off the engine and then starting it up
> within 45 min.
> Right now it's in my garage and will start, idle but if I touch the gas it
> dies.
> Replaced fuel pump, filter, MAP Sensor.
>
> Any thoughts?
>
>




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  #3  
Old March 17th 05, 10:11 PM
HLS
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Default

What engine, the 3800?
Has it set any error codes?


  #4  
Old March 18th 05, 12:14 AM
Woody
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Check the throttle position sensor...

"shnakebite" > wrote in message
lkaboutautos.com...
> this seems to happen every 3-4 week where my 90 Buick Regal with stall
> with
> any pressure on the gas peddle at first it will lose power but if i step
> on
> the gas and release it will be fine for up to a day.
> Twice it would die after warming up and sitting for a couple hour and then
> a short trip (2 miles) shutting off the engine and then starting it up
> within 45 min.
> Right now it's in my garage and will start, idle but if I touch the gas it
> dies.
> Replaced fuel pump, filter, MAP Sensor.
>
> Any thoughts?
>



  #5  
Old March 18th 05, 01:22 AM
shnakebite
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Posts: n/a
Default

3.1
I dont have a scaner. Last scan resulted and old map sensor code but the
map sensor was reading fine. that has now been replaced

  #6  
Old March 20th 05, 02:50 AM
« Paul »
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Default

shnakebite wrote:
>
> this seems to happen every 3-4 week where my 90 Buick Regal with stall with
> any pressure on the gas peddle at first it will lose power but if i step on
> the gas and release it will be fine for up to a day.
> Twice it would die after warming up and sitting for a couple hour and then
> a short trip (2 miles) shutting off the engine and then starting it up
> within 45 min.
> Right now it's in my garage and will start, idle but if I touch the gas it
> dies.
> Replaced fuel pump, filter, MAP Sensor.
>
> Any thoughts?


TPS. Don't just replace it, check it with a _digital_ vom first.
 




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