This car turns off by itself when is running

2005 PONTIAC GRAND PRIX
150,000 MILES • 3.8L • V6 • FWD • AUTOMATIC
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GVFZ
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when the car is running turn off by itself, also when I make a stop it turns down, I have change the fuel pump already and check all the vacuums and the GR valve what do you think might be the problem also I would like to comment that there's a T/C code on in the revolution I would appreciate your help thank you!!
Jan 22, 2015 at 9:29 PM
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HMAC300
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try cleaning the throttle plate and iac hole with choke cleaner. then have a trans guy scan it if it's a t/c code the converter may be staying on locked up causing it to stop
Jan 23, 2015 at 6:07 AM
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GVFZ
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I did cleaned the throttle plate and iac hole over the weekend and I did scaned it for the t/c light but there's not appear a code in the scanner but the t/c light remains on, and also how I can do to find out if the converter is on locked up or not after I did the throttle and iac hole?
Jan 26, 2015 at 8:31 AM
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HMAC300
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normally when the converter stays locked up the engine stalls. have a trans guy check it. you may have connection problem with your scanner as well.
Jan 26, 2015 at 9:25 AM
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GVFZ
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I found out that the catalytic it's brand new so do you think there is still a problem with the converter, also I did checked the coils and the first two seem as if it would be cutting electricity would you please help me with this situation I really will appreciate it thanks!!
Jan 28, 2015 at 10:28 PM
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HMAC300
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the torque converter for the transmission I should have been a little more explicit
Jan 29, 2015 at 5:47 AM
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GVFZ
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you been explicit, was me who may didn't understand it since I don't have much experience like you but I appreciate tons, do you think that I should check the injectors or the coils before to go check the torque converter?
Jan 29, 2015 at 9:41 AM
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HMAC300
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a torque converter should be checked by a pro as well as the car should scanned for codes as well as the injectors
Jan 29, 2015 at 9:58 AM
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GVFZ
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I'm fixing a hyunday sonata 04 may you help me I need to torque the damp pully can you please tell me how many pounds are necessary to torque it thank you so much!!
Jan 30, 2015 at 5:27 PM
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HMAC300
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this question should be reposted besides you didn't give engine size
Jan 31, 2015 at 6:17 AM
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GVFZ
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i'm sorry it isn't a damp pully it the crank shaft pulley on a 04 hyunday sonata 2.4 may you tell me how many pounds to torque it , I did change the timing belt and when I put every thing back the car is making a noise on the belts side and also runs the car runs as it is to tide
Jan 31, 2015 at 10:01 AM
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HMAC300
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50-60 ftlbs.but when a belt is changed it should be done as a kit with tensioner and water pimp
Jan 31, 2015 at 3:36 PM
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GVFZ
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i appreciate it was very helpful I did it right thanks to your help God bless you!!
Jan 31, 2015 at 10:22 PM