Cold Weather = Wont Start?

[Seattle67Fstbck]

Problem has been getting worse as it gets colder. Used to be a rough start (crank, almost die, then idle like normal) now it wont idle at all! Cranks and immediately dies. I can manually give it gas and it will run as long as I give it gas, but as soon as I let off the idle drops and she dies. I pulled the battery cables for 20-30 mins to reset the PCM and problem persists- Checked battery and voltages are right where they are supposed to be-
Any suggestions?

 

[Seattle67Fstbck]

Anybody? Thoughts? Places to start?

 

[ponysarepretty]

IAC... try clean it, if that doesn't work replace it.

Other than that, check that all the hoses are properly attached underhood.

 

[40th GT]

Is this the '67 that you're talking about?

I'm assuming this is a carburated engine, so I'll tell you to check/clean the carb and its gaskets. Also might be a good time to change the fuel filter.

 

[Seattle67Fstbck]

I wish it was the 67! The 67 seems so incredibly basic compared to the 2001! I tried cleaning out the IAC but it didnt seem to help the issue. The car did rev a bit smoother when I was giving it gas though! I am going to try cleaning the MAF wire tomorrow- beyond that I am kinda running outta ideas- anybody else have any guesses? Severe and sudden vacuum leak? Broken IAC?

 

[Chris00GT]

You might want to check the front 02 sensors. When mine went bad it didn't want to start on real cold days. We datalogged the car and found out the front 02's were taking to long to heat up and causing the issues. Replaced them and the car started fine again.

 

[ABN_Cobra_03]

Is this a condition that is only until it warms up? Based on lack of symptoms, I like to start simple, Plugs. If the plugs are good and it is only when cold, replace the O2 sensors. If this is a problem after warm up I would replace the IAC.

Good luck