Car Problem Reports
Buick LeSabre Intake Manifold Gaskets Can Develop Engine Oil Leaks
Buick LeSabre Problem
Average Mileage: 104,417 mi (27,000 mi - 200,000 mi)
Visitor, 2003 Buick LeSabre, 114,000 mi
I reported to the nearest dealer (Chevy, not Buick) that the driver side intake manifold melted in one spot and appeared to be caused by a coolant leak. Looked like coolant was dripping onto part of gasket extending outward of engine. Ten hours later (called dealer at 5:45 p.m.(cost for diagnosis is $79)told that replacement is needed for both plastic elbow tubes with o rings (tension assembly piece and motor coolant flow tubes), two intake manifold gaskets, a transmission gasket, and replace both rear shocks is estimated at $1500 (nothing in writing yet).
I am a little uneasy in letting this be done as I had to have a major transmission repair right after this dealer did a transmission flush (do not recommend at all) and I found transmission fluid all over the engine compartment and the engine a few days later.
Fix it. I plan to ask the service manager if they can do better and reduce the cost from $1500. If not, I will delete the rear shocks (do them myself at a local auto craft shop) and tranny gasket (no visible leaks anywhere)and see what the revised cost estimate numbers are.
Just for some fun, one phone call to a parts place produced the following: plastic elbows are $3.99 a pair; non-plastic gasket intake manifold kit is $299.00. And, the current on engine intake manifolds are make out of plastic....and I am totally surprised to hear that and am not keen on that at all. Now, intake manifold gaskets can develop engine leaks. Assuming these gaskets are the plastic ones that were not advertised to this owner by GM.
My budget is $1,000 but not $1500 with all the stuff added in. I would like to buy some X-mas presents, too, for children/families who are poor and not making it in this economy...etc.
I paid $36,000 for this vehicle (new) and these problems at 114,000 miles on a maintained vehicle makes me wonder why buy American or GM or I should trade in every five years. Trade it in seems to be the answer for me.
Visitor, 2002 Buick LeSabre, 107,300 mi
The intake manifold gasket leaks engine oil. Replaced manifold gasket to correct.
Visitor, 1991 Buick LeSabre, 57,315 mi
Engine oil leak. Replaced the upper intake plenum gasket per GM recommendation to fix problem.
Visitor, 1998 Buick LeSabre
i have replaced the plenum twice. the original plastic plenum was replaced with another plastic plenum from my friendly buick dealer by an independent mechanic. the second time around, about 2-3 years later, i bought a more durable plenum from a discount auto parts company, and it's still going. this "planned obsolescence" by GM really "upsets" me, but i'm not buying foreign ... YET!
Visitor, 2000 Buick LeSabre, 200,000 mi
external oil leak and also internal- entering in the cooling system as evidenced in the resivoir.
Visitor, 1996 Buick LeSabre, 133,000 mi
loss of coolant, oil leaks, upper plenum to throttle body deterioration. installation of lower intake gaskets, upper plenum replacement at the same time.
This is my third buick with this problem I thought it was fixed in 1999 ihad a 1997, buick and a 1998 buick lasabre cost a bit under $1000 to replace each time.
Visitor, 2000 Buick LeSabre, 75,000 mi
Intake manifold oil leak- Had the gaskets replaced
Visitor, 2000 Buick LeSabre, 100,000 mi
oil leak intake manifold
Visitor, 1993 Buick LeSabre, 104,580 mi
oil leaking from the intake gasket, I´m going to change the gasket very soon.