I am replacing the engine mounts on my 1997 Buick Lesabre, and I'm having trouble finding where the rear driver side engine mount is. I think it is by the transmission, but I'm not sure.

the mounting bolts are at the rear of the starter and go upwards through the starter into the engine block.when looking at the starter solenoid were the wires are connected to the starter follow it towards the rear away from the wires towards the transmission.this is were you will find the mounting bolts at the bottom of the starter(closest to the ground).they are 9/16(15mm) bolt heads.

For 1997 Buick Lesabre 3.8L SFI OHV 6cyl the Engine Control Computer is located: Front seating area, passenger side, behind dash, mounted behind glove compartment cavity .

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It should be located in the Fuse box under the hood or mounted on the fender wall drivers side under the hood.

You don't have to remove the mount. Go thru the wheel well on the passenger side and remove the motor mount bolt just right of the crank pulley. Then remove the stud that the nut was on. Then remove the sleeve that the stud goes thru. Then you can change the belt.

Yes, as long as the engine mounts line up, a 95 engine will work in a 97. Be certain that the transmission in 97 will mount to the 95.

For 1994 Buick Lesabre 3.8L SFI OHV 6cyl the EGR Valve is located under hood, center, rear engine area, mounted top rear driver side of engine.

There is a 4-wire connector on the top and it is mounted by two bolts on a flange. About 2" in diameter, 4" high...

Not sure, but I had a 1997 Malibu and I had to loosen the top motor mount and jack up the engine to get enough room to get the belt under it. (What a crappy design). Sounds like the LeSabre is the same way.

Not the whole mount! Raise the car, remove passenger front wheel. Remove two clips that hold splash guard that is in front of the lower part of that engine mount. You'll then see the lower stud with a nut on it. Remove that nut, remove stud with a socket, then remove the spacer that was around stud between bracket and engine. That opens a gap to allow the belt to go on.

right side just aft of the front right tire underneath

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1992 Buick Lesabre 3.8L SFI OHV 6cyl

The Fuel Filter is located... there are three possible locations for this component due to variation in production under hood, passenger side, rear engine area, below firewall, mounted in fuel line or under vehicle, passenger side, below seating area, mounted on frame in fuel line or under vehicle, driver side, below rear seating area, mounted on frame in fuel line.

I hope help you. Good luck.