Question about 1999 Oldsmobile Cutlass
Thanks to all the responses I really do appreciate it. To answer to those who have responded. Yes the dexcool to water mix in the system is 50/50. The temp guage itself was my next thought as well. So I did replace that but still just as before the guage reads hot and upon a 7-8 mile drive all coolant is spraying out the overflow tube on the coolant tank. I do bleed the system correctly using the release valve,heater on while filling, and proper burping. So with the entire cooling system replaced. Replaced 2 thermostats,water pump,radiator,coolant tank,radiator cap,dexcool,hoses,temp switch. I will try the suggestion of the intake manifold gasket. Give me a chance to see what its lookin like inside.I guess. Any Other Thoughts Please?!
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Posted on Jan 02, 2017
Hello Taz..might check the converter to make sure the exhaust system does not have excessive backpressure. Also make sure the electronic cooling fans are cycling...they should kick in and out. They are tied into the A/C system circuit with a relay.
The 3.1L and 3.4L V-6 Engine (VINs J, E - RPOs LG8, LA1) were known to have intake gasket failure. This was due to a bad gasket that was designed by GM...it had nylon in it...Over 400,000 of these were sold in Canada alone. The gasket has since been redesigned and torque specs recalculated. If you replace the manifold gaskets follow these guidelines.
Install a new design intake manifold gasket. The material used in the gasket has been changed in order to improve the sealing qualities of the gasket. When replacing the gasket, the intake manifold bolts must also be replaced and torqued to a revised specification. The new bolts will come with a pre-applied threadlocker on them.
An oil leak may result if the vertical bolts are not tightened before the diagonal bolts.
Diagonal bolts may require a crows foot to tighten.
1. Tighten the vertical lower intake manifold bolts (1) to 7 N.m (62 lb in).
2. Tighten the diagonal lower intake manifold bolts (2) to 7 N.m (62 lb in).
3. Tighten the vertical lower intake manifold bolts (1) to 13 N.m (115 lb in).
4. Tighten the diagonal lower intake manifold bolts (2) to 25 N.m (18 lb ft).
Good luck...i hope this helps.
Posted on Jul 27, 2009
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