3.8 L Coolant leak
Bumpa2
12-29-2002, 06:17 PM
My 95 Bonne with 3.8L uncharged engine (90 k miles) is consuming coolant. No external leaks (hoses, clamps, core plugs, water pump, radiator, heater or overflow tank). Coolant side pressure checked hot & cold OK. Coolant sniffed for exhaust; none detected. Here is the crux: the exhaust pipe drips GREEN LIQUID. Engine runs fine (for now). Any comments would be appreciated.
Thanks
Bumpa2
Thanks
Bumpa2
Shortbus
12-30-2002, 10:37 AM
It's not going in the oil pan is it? Thats a weird one. Is your coolant the orange crap (dexcool) or green. How much coolant is it using?
Bumpa2
12-30-2002, 07:57 PM
I've used the green stuff since mile 1. No coolant in oil (drained and settled for separation). I read about several cases of coolant leaking into the intake via the upper intake manifold (black fiber or plastic) but I didn't think coolant actually circulated above the lower aluminum manifold.
Shortbus
12-31-2002, 09:08 AM
Yeah we do keep those upper intakes in stock, cause they crack a lot.
I am pretty sure it has to do with coolant leaking. That would be a good place to look.
I am pretty sure it has to do with coolant leaking. That would be a good place to look.
Scott 02
01-29-2003, 11:18 AM
How much are those by the way?
Shortbus
01-29-2003, 11:28 AM
The pn is 17113136 and they list at 295.00
If you buy em right on the internet you can get them for 200.
If you buy em right on the internet you can get them for 200.
Scott 02
01-29-2003, 11:46 AM
Sound good.
firehawkman
01-27-2004, 08:03 PM
i have 2 of those intakes came off a 98 bonneville not sure of the interchange on them if you can use them ill deal with ya need to get them outta my garage
IT247365
10-17-2011, 10:18 AM
I solved this problem. Check out http://dailytweak.wordpress.com/2011/08/22/3-8l-coolant-leak/
maxwedge
10-17-2011, 12:36 PM
Please check the dates first ,this is a 7 year thread and the solutions are well known.
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