Having problems with your 1999 Pontiac Grand Am GT ?

99 pontiac grand am se 6 cyl. Few days ago car refused to start. Would try to turn over but wouldnt get there. Checked plugg wires and made sure they where clean and well connected. Started afterwards. Yesterday it sarted misfiring BADLY on startup but would even out after driving for a bit. Now. itll start then right away turn off. It will only run if I leave my foot slightly on the gass during startup otherwise itll refuse to start. Problem is getting WORSE. please help.

Posted / edited by AnonymousUser on : 23-10-2017

Answers :

I would start by checking the throttle position sensor. It can be ohmed out with an analog multimeter to see if there are any dead spots in it. You might also check the fuel system pressure to see if the pump is intermittent.

Hope this helps.
Repair Help & Product Troubleshooting for 1999 Pontiac Grand Am GT

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