Pontiac Grand Prix Block Heater Cord

PONTIAC GRAND PRIX
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SHIPY300
  • MEMBER
  • 1 POST
little help here.......i beleive i have a block heater on my grand prix there is a power cord tied to the frame bar under the hood...is this a cord for a block heater...and if it is, is there a period of time it should be plugged in and is there a period that is too long
Nov 30, 2006 at 2:28 PM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Follow the wiring, see where it goes. If it is a block heater, you use it in extremely cold regions, so hopefully your engine fluids won't freeze. You just use it overnight. Different type heaters may work better for some vehicle systems, but, basically used to ward off the cold.

I realize this is an old post. In the future, hope you don't have any vehicle issues, but, if you do, keep the site in mind. They are always working to improve the site and it's free.

Have a good day.
May 23, 2015 at 5:29 AM

Suggested Repair

Trace the cord to see where it connects. If it is a block heater, plug it in overnight in extremely cold weather to help keep engine fluids from freezing; do not leave it connected longer than needed.

Conversation Summary

The owner of a Pontiac Grand Prix asked whether a power cord tied to the frame under the hood is for a block heater, how long it should be plugged in, and whether leaving it plugged in too long is a problem. The expert advised following the wiring to confirm what it powers, and said a block heater is used overnight in extreme cold to help prevent engine fluids from freezing.

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