Oldsmobile Regency owners have reported 8 engine and engine cooling related problems since 1996. Table 1 shows the 5 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's engine cooling system (3 problems). The second most common problem is related to the vehicle's manifold/header/muffler/tail pipe (2 problems). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Engine Cooling System problems | |
| Manifold/header/muffler/tail Pipe problems | |
| Engine problems | |
| Engine Stall problems | |
| Coolant Leaking problems |
My 1998 Oldsmobile Regency was losing coolant. I could not see a visible leak. The check engine indicator light came on, so I took the vehicle to be serviced. The mechanic found the upper intake (plenum) to be leaking the coolant into the engine (cylinder #3. Read details...
Coolant leaked out the intake manifold. Had to replaced intake manifold and gaskets. E-mailed consumer response exhaust gases had gotten into the plastic upper manifold had thermally broke down the plastic and caused the leak. Read details...
Consumer was getting a clunk at times when braking and also when starting the vehicle. Dealer said it sounded like an engine mount, which is a loose cradle bolt. Read details...
Vehicle has stalled 7 times at various speeds. Dealer has inspected vehicle twice, but could not find the cause. To stop engine stalling, the dealer replaced the crank shaft position sensor. Read details...
Bought my 1998 Oldsmobile Regency in July of 2005 with 78000 miles on it. March of 2006 the check engine light would come on and go off. The coolant was bone dry upon inspection by self. There were no visible leaks. I took it to my mechanic who had to replace the plenum at a cost of $533. 00. Read details...