manifold

I was looking closely at my 3800 series 2 engine on 1997 Lesabre. It is quite clean and dry, at 100,000 miles. The temp and oil pressure gauges never move more than one notch. The intake manifold has a Delphi tag and a molded date code of 2004 (actually 3 codes of day, month, and year 04.) At...

I'm really disappointed with my Encore. I've had numerous things need repairs fortunately still under warranty. I selected Buick as it's always had a great reputation (I thought). At 36K miles, here is what I've had replaced. 10/29/18 – Thermometer replacement. 09/12/18 – Relay replacement...

Hello all! My name is Al. I recently purchased a 2004 Buick lesabre Limited with 89000 miles. 3800 series II engine. Any upkeep info and tricks and hack would be appreciated! But to start: When car is parked and I rev the engine after it’s warmed up it stutters around 4K rpm. Also I’ve noticed...

Hello everyone, I drive a 1993 Buick Park Ave Ultra, and tomorrow I'll be replacing the upper intake manifold as it's leaking. When I remove the supercharger, will the oil within it spill everywhere; or will it remain inside unless I willingly drain it? If I have to drain the oil prior to...

I am new here so and though handy not a car 'pro'. I need some help. After removing the plastic intake manifold, and removing the plenum (research said replace those gaskets whenever replacing upper plastic manifold) I noticed a passageway FILLED/BLOCKED with orange-ish gunk (see photo). Is my...

Our LeSabre has been well-maintained, has 96k miles on it. It had a very slow leak, which didn't even show up on our driveway...until we had it "fixed". Here is what the mechanics have done: * Removed/replaced upper and lower manifold gaskets * Cleaned throttle body * Cooling system flushed...