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engine coolant

Old Jul 17, 2003 | 11:52 PM
  #1  
1fast91rs's Avatar
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From: windsor locks,ct
Car: 1991 RS
Engine: 305 LO3(TBI)
Transmission: TH-700R4
engine coolant

i need to drain my engine coolant out of my block but i dont know where the drain plug is and was wondering if someone can help me also if you have any pics it would help alot
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Old Jul 18, 2003 | 12:15 AM
  #2  
AJ_92RS's Avatar
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Pull out the knock sensor (driver's side IIRC.)
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Old Jul 18, 2003 | 12:16 AM
  #3  
gruveb's Avatar
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From: Rio Rico, AZ 85648
Car: 1989 IROC-1
Engine: L98
Transmission: 700r4
Shop vac, duct tape and a straw.

Or look on the side of the block, driver's side. Laying on your back you should see it...........

But the shop vac is more fun.
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Old Jul 18, 2003 | 12:28 AM
  #4  
1fast91rs's Avatar
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From: windsor locks,ct
Car: 1991 RS
Engine: 305 LO3(TBI)
Transmission: TH-700R4
that should drain my block completely correct??
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Old Jul 18, 2003 | 12:40 AM
  #5  
AJ_92RS's Avatar
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Originally posted by gruveb
Shop vac, duct tape and a straw.

Or look on the side of the block, driver's side. Laying on your back you should see it...........

But the shop vac is more fun.
I heard those shop vacs really suck!!
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Old Jul 18, 2003 | 05:55 AM
  #6  
RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
There's one plug on the driver's side that drains that bank, and one on the pass side that drains that side. As was said, the knock sensor does double duty as the pass side coolant drain. The drain holes are just above the oil pan rail.
Attached Thumbnails engine coolant-coolant-drain-hole.jpg  
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Old Jul 18, 2003 | 04:08 PM
  #7  
1fast91rs's Avatar
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From: windsor locks,ct
Car: 1991 RS
Engine: 305 LO3(TBI)
Transmission: TH-700R4
how do i remove the knock sensor on the passanger side??
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Old Jul 19, 2003 | 09:35 PM
  #8  
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From: kentucky
Should be a hex shape on it ....enough to get a wrench on I think...
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Old Jul 20, 2003 | 05:51 PM
  #9  
Mark W. Winning's Avatar
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From: Stuart, Florida USA
On my motor, all the coolant was in the oil pan. Easy to drain the block that way!
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