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Master Auto Tech
Master Auto Tech, ASE certified Master Technician
Category: GM
Satisfied Customers: 417
Experience:  Over 20 years repairing import and domestic vehicles
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I am wondering what would cause my 97 gmc to idle in park

Customer Question

I am wondering what would cause my 97 gmc to idle in park but when I shift in to drive it dies? what would it be
Submitted: 5 months ago.
Category: GM
Expert:  Master Auto Tech replied 5 months ago.
I strive to provide 5 star service. If I have satisfactorily answered your question please rate it as such and hit submit. Doing so is the only way I get compensated for my time. Also it doesn't close the discussion so we will still be able to communicate if there are further questions.
Thanks
SonnyDoes it die really quickly when you put it in drive?It's most likely the TCC solinoid in the transmission.
(Torque converter clutch solenoid)Thanks
Sonny
Customer: replied 5 months ago.
it die pretty quick but qhen I go to reff it up i have to go slowly
Expert:  Master Auto Tech replied 5 months ago.
I'm not quite sure I understood the last part. It won't rev up in park? Or?
Customer: replied 5 months ago.
it revs up I have to push pedal slowly or it will die
Customer: replied 5 months ago.
but it will idle just fine in park
Expert:  Master Auto Tech replied 5 months ago.
If you push it fast does it cough and sputter and even kinda backfire?
Expert:  Master Auto Tech replied 5 months ago.
I'm going to be logging off for the night in a few min. So if you have any more questions feel free to ask but I may not be able to reply till tomorrow. If it's urgent another tech may jump in.Thanks
Sonny
Customer: replied 5 months ago.
it will sputter and idk what it will be i was thinking maybe the throttle body sensors get wet and messed up
Expert:  Master Auto Tech replied 5 months ago.
There are a few possibilities. A few sensors can cause this. Do you happen to have a check engine light on? And do you happen to have a scanner with data?
Customer: replied 5 months ago.
the check engine light is mot on and I hooked it tp the coputer but its not reading any code cause the check engine light is not on
Expert:  Master Auto Tech replied 5 months ago.
does your scanner have data?
Customer: replied 5 months ago.
Expert:  Master Auto Tech replied 5 months ago.
Do you have a fuel pressure tester? Can you check the pressure for me? Or actually tell me what the pressure was when you checked it? Just noticed you said you checked it.Also, this is a common symptom of a bad mass air flow. Do you know someone you can trade with to see if yours is bad? (Instead of just buying one)Thanks
Sonny
Customer: replied 5 months ago.
my pressure was 50 to 60 psi and yea I can probably find someone
Expert:  Master Auto Tech replied 5 months ago.
Ok that is good pressure. My bet is on maf. But there are still a few sensors that can cause it. But I have replaced a ton of the maf's on these years.Let me know.Thanks
Sonny
Customer: replied 5 months ago.
Ok thanks
Expert:  Master Auto Tech replied 5 months ago.
No problem. Anytime.
If you find it is the maf, please kindly rate my help. If it isn't, let me know and I'll continue to help.Thanks
Sonny
Customer: replied 5 months ago.
Ok i will
Expert:  Master Auto Tech replied 5 months ago.
Thanks
Expert:  Master Auto Tech replied 5 months ago.
Any luck with the maf?
Customer: replied 5 months ago.
No i havent had time to go work on my truck been working
Expert:  Master Auto Tech replied 5 months ago.
Ok no problem. I was just looking back at the open help requests I have and wanted to check.Thanks
Sonny
Customer: replied 5 months ago.
i will work on It this weekend and ill message u and let u know
Expert:  Master Auto Tech replied 5 months ago.
Awesome. Thank you
Expert:  Master Auto Tech replied 5 months ago.
I strive to provide 5 star service. If I have satisfactorily answered your question please rate it as such and hit submit. Doing so is the only way I get compensated for my time. Also it doesn't close the discussion so we will still be able to communicate if there are further questions.
Thanks
Sonny

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