poor acceleration from a stop

1991 SATURN SEDAN
4 CYL • FWD • AUTOMATIC
Avatar
MARK1967
  • MEMBER
  • 3 POSTS
I just replaced the thermostat on my 91 saturn, however since i replaced it, my car now hesitates when giving it gas from a stop position. What could cause this all of a sudden?
Feb 25, 2011 at 7:03 PM
Advertisement
Avatar
SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Replacing the thermostat shouldn't cause the car to hesitate is it worse with the a/c on?Any code's?
Feb 25, 2011 at 7:08 PM
Avatar
MARK1967
  • MEMBER
  • 3 POSTS
The ac does not work. I'm wondering could it be a bad plug wire? I don't think the check engine light is on. my wife drives the car and she'll be home soon. It is just coincidence after changing the thermostat that this problem came out of nowhere. Could it also be a sensor going out? Thank you for responding so quickly.
Feb 25, 2011 at 7:17 PM
Avatar
SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
The coolant temp sensor's goes bad pretty often on those car's it would be the bottom one with two wire's going to it a black wire and a yellow wire.It's screwed into your head right below where your upper hose goes on.There only 10 also inspect the connector going to it if it's corroded you would have to replace the connector too.Also you could have bad spark plug's and wire's i would inspect those too.Also where your spark plug wire's go on to the coil check those coil tower's they get corroded and cause problem's.Let me know what you find.
Feb 25, 2011 at 7:26 PM
Avatar
MARK1967
  • MEMBER
  • 3 POSTS
Thank you for the advice. I will be in touch to let you know how it went. Again thank you
Feb 25, 2011 at 7:35 PM
Avatar
SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Your welcome that's what were here for keep me posted.
Feb 25, 2011 at 7:37 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.