coolant leaking on passenger side floor??
07-22-2016, 07:04 AM
#2
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Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: coolant leaking on passenger side floor??
heater core most likely. Should be an easy replacement in the Pontiac.
07-22-2016, 07:26 AM
#3
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Car: 91 G92 Z28
Engine: 305 TPI
Transmission: T5
Axle/Gears: 342
Re: coolant leaking on passenger side floor??
Get yourself a heater core bypass hose for a temporary fix until you can replace the core. You'll have no heat, but it will get you down the road without a puddle of coolant on your passenger floor until you can have the core replaced.
07-22-2016, 07:31 AM
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Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: coolant leaking on passenger side floor??
Tip, get that anti freeze out of the carpet before it has a chance to stain. The jute padding is probebly wet also.
07-22-2016, 07:33 AM
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Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: coolant leaking on passenger side floor??
the core swap should take less than 30 minutes. most of that time is taken up by replacing the heater hoses going into the core. tomorrow is Saturday. why work on it twice?
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07-22-2016, 01:18 PM
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Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: coolant leaking on passenger side floor??
Really? I assumed any of the 3rd gens. were a bear to do. Why is the Pontiac so much easier than the Camaro? I didn't think the dash shape was all that radically different.
07-22-2016, 01:22 PM
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Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: coolant leaking on passenger side floor??
Dave, Its true.
Once you pull down the panel under pass side and then the plastic trim panel by the pouch, you can get to the top screws to the core box. I thought the same. About a half hour. Now the Camaros, I beleive take like 13 days or sumtin like that!
Once you pull down the panel under pass side and then the plastic trim panel by the pouch, you can get to the top screws to the core box. I thought the same. About a half hour. Now the Camaros, I beleive take like 13 days or sumtin like that!
07-22-2016, 01:25 PM
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Car: 1987 SC/1985 TA
Engine: 350/vortec/fitech
Transmission: T56
Axle/Gears: 3.27 9-bolt
Re: coolant leaking on passenger side floor??
Most any core you get these days is going to be aluminum. Do not let someone tell you different in that such part number at such place is the preferred (by some) brass piece. In each case it's likely simply old stock.
Just get a name brand piece from your local shop or order from RA if you have a few days.
Just get a name brand piece from your local shop or order from RA if you have a few days.
07-22-2016, 01:54 PM
#11
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Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: coolant leaking on passenger side floor??
It's not leaking today, but nothing lasts forever.
07-22-2016, 02:20 PM
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Car: 1 Owner 1986 TA with a WS6 package
Engine: 5.0 EFI
Transmission: THM700R4
Axle/Gears: 277 Posi Speedo
Re: coolant leaking on passenger side floor??
,That could be your next project Dave. you like tearing things apart 
P/N 3048945.
Take your time,it's not really that hard to do,that is,if your not a large person
07-22-2016, 02:32 PM
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Car: 1988 Trans Am
Engine: L03
Transmission: 700R4
Axle/Gears: 10 Bolt 2.73 Open
Re: coolant leaking on passenger side floor??
No, I do not like taking things apart. I would love to just drive and enjoy the car and never have to turn a wrench. But that's not the nature of old car ownership.
And as for that side of the dash...I just had it all apart! I hope to NOT be going back in anytime soon.
And as for that side of the dash...I just had it all apart! I hope to NOT be going back in anytime soon.
07-22-2016, 02:50 PM
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Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: coolant leaking on passenger side floor??
I need to go in there and replace the foam around that vacuum operated flapper door thingie dillie chingis. When I start the car, I hear that door go BANG! Not looking forward to it.
07-22-2016, 02:52 PM
#16
07-22-2016, 04:39 PM
#17
Re: coolant leaking on passenger side floor??
Had no clue that the firebird/trans am heater cores were easier than the Camaros, I always assumed it was the same dashboard breaking procedure for both. You guys just made me glad I have a Trans am lol
09-07-2016, 02:41 PM
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Re: coolant leaking on passenger side floor??
I had a similar problem with my 88 RS about 14 yrs ago, changed out core not that bad a job, BUT the next summer when on a trip to San Antone when the weather got hot when
getting in car n morning was bad the "aroma" from that leaked coolant created an
awful smell and at the time never thought what could be cause, looked for a rodent that
had got in and passed on . took quite awhile to get that smell out.
getting in car n morning was bad the "aroma" from that leaked coolant created an
awful smell and at the time never thought what could be cause, looked for a rodent that
had got in and passed on . took quite awhile to get that smell out.
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