2001 Chevy Astro Cold Starting

Tiny
WATERBOY
  • MEMBER
  • 2001 CHEVROLET ASTRO
Engine problem
2001 Chevy Astro 6 cyl All Wheel Drive Automatic 165000 kilometers

During cold weather my vehicle will not start unless I have the block heater plugged in. These are the things that have been done to try and rectify the problem. First, I use gasoline antifreeze when filling up. Replaced the distributor cap and associated parts. Changed the battery to ensure strong cranking. Most recently changed the temperature sensor. When the vehicle is plugged in during the night it will start without hesitation. Is there anything else that may be causing this problem? Thank you.
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Friday, February 8th, 2008 AT 12:43 PM

4 Replies

Tiny
BLACKOP555
  • EXPERT
When you say you replaced the temperature sensor.

Do you mean intake air temp sensor, or coolant temp sensor.

Also are you sure you replaced the coolant temp sensor not the sending unit?

Unhook the thing you replaced, and start the car if it shows full hot or all the way cold with a warm engine then you replaced the send unit not the sensor.
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Friday, February 8th, 2008 AT 8:06 PM
Tiny
TECHMAN1
  • MEMBER
I've had 4 Astro's. It is going to be your ignition wire between the ignition coil and the distributor. If this wire is gently leaning against an engine crossmember, look closely at that spot for microscopic "punch through" voltage holes. Do NOT buy cheap ignition parts for an Astro. Forget Duralast and other cheap makes. Buy the more expensive Sorensen and Autolight brand names. And only Autolight Double Platinum plugs.

I wrap my coil wire with 3/8ths inch spiral band and then cover that with half inch plastic split loom.

On my 4th Astro, I drive it 1,000 miles a week and have now 208,000 miles on it.

I have seen dozens of people with Astro problems that thought they had injector problems, sensor problems, computer problems, and just a good ignition system rebuild fixed them all.

Good Luck
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Saturday, February 9th, 2008 AT 12:16 AM
Tiny
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I will check into that. I didn't complete the repair but I will inquire.

Thanks for the information. Very much appreciated.
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Saturday, February 9th, 2008 AT 10:56 AM
Tiny
WATERBOY
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Definitely worth a try. That is one thing that hasn't been changed. Thank you for the information.
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Saturday, February 9th, 2008 AT 10:59 AM

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