1997 Chevrolet Monte Carlo LS 3.1 SFI

Summary:

A sleek, luxury coupe with unparalleled styling and adequate performance

Faults:

When I purchased the car the front disc brakes were making awful noises which took away from the otherwise beautiful appearance of the car. They were repaired to the tune of $750; the fault was not of the car, but of the previous mechanic who failed to align the pads correctly, and wore them unevenly, causing them to heat up very rapidly and emit noise. The rotors had also been cut below their stamped minimum. Now the car stops firmly and the ABS works extremely well.

Additionally, when I purchased the car it was slowly losing coolant. The previous owner just kept topping off the coolant overflow tank and kept driving it as per the instructions of his mechanic. I did the same until I changed my oil at a regular interval of 3000 miles and noticed coolant in the oil. I promptly brought it in for service and all of the upper motor gaskets were replaced, the culprit was the intake gaskets. It seems to be a common problem with the 3100 SFI motor and my mechanic diagnosed the problem without even opening the hood of my car.

At about 117,000 miles, the air conditioner compressor began to make a rattling noise only when disengaged. I brought the car in for service and was told the only real solution was to replace the compressor. Instead of taking this route, I drenched the mechanics of the compressor clutch in WD-40 and now it operates almost silently.

General Comments:

This car is Chevrolet's high-luxury coupe, it is not built for racing or speed, but for someone interested in a good looking vehicle and riding comfortably. That being said, the 3100 SFI motor is very responsive from a stop, has adequate power for city driving, and has excellent power climbing hills. Unfortunately, from the factory it suffers from a large amount of flow restriction and because of this lacks the high end passing power the 3.4L DOHC can deliever. When accelerating in the 4,000 to 6,000 RPM range you can feel the motor working harder, but the car does not seem to accelerate more briskly with the added work. Replacing the stock air box and stock exhaust with high flowing models can offer a large performance improvement, and porting and polishing the throttle body, upper intake plenum, and lower intake manifold will allow the 3100 to approach and achieve the high end performance of the larger 3.4L DOHC.

Performance flaws aside, the car rides great, and has a very soft, easy feel when cruising at all, but extremely high speeds, but does not feel loose in cornering. It holds the road very well for a car of its size and weight and I was impressed with its stopping ability for a large GM W-Body vehicle once my brakes had been repaired. The ABS system works very well and had saved me from accidents under wet conditions on two occasions.

The interior is very nicely designed, the leather seats are very soft and plush, and all of the controls are at easy access. Many of my passengers complain that the doors are huge and very heavy, but I do not have a problem with them. The back seat is very large, and the large trunk pass-thru is very functional and I use it often. The Delco factory CD Player works well and produces good clear sound. I enjoy listening to it, and don't feel a need to replace it with aftermarket equipment.

Overall I am very happy with my Monte Carlo, and would strongly recommend the car to anyone considering one. I suggest that you test drive both a Z34 and an LS before you buy and decide of the added power is worth the very high maintenance costs that come with the Z34. You may be happier with an LS that has some basic modifications to free up air flow and regain the high end power.

Would you buy another car from this manufacturer? Yes

Review Date: 19th February, 2003

16th Mar 2008, 23:02

A great review here. The writer is exactly right about the resrictive intake and exhaust on the 3100 LS model. I'd like to add that one could also use the lower and upper intake mainfolds off of a 3400 engine to achieve much higher horsepower.

1997 Chevrolet Monte Carlo LS 3.1 Liter

Summary:

A safe, reliable, well built car

Faults:

The alternator had to be replaced at 40000 miles.

General Comments:

This vehicle, while it appears sporty, is a perfect example as to why you should never judge a book by its cover. Whereas many other vehicles in this price range can command power and speed to make Hemingway proud, it seems at times the vehicle wishes to plod on like a James Joyce novel. If you're willing to abuse your gas pedal you can squeeze some power from the engine.

The car apparently has a touring suspension which limits its cornering and acceleration capabilities, though it enhances the feel of being in a slightly more upscale Chevy.

On the other hand the interior is rather roomy and well appointed. Imitation wood panel inserts and a chrome Monte Carlo name plate in the cabin add a touch of class.

The factory sound system has served very well and has weathered quite a bit of high volume punishment.

Speaking of punishment, I personally wrecked this car by taking out a barbed wire fence at around 90 miles per hour and the only repairs other than some hose replacement were to the body panels and windshield. At more than $4000 worth of damage, the vehicle was still sound mechanically and has given me no problems since. As for myself, I walked away from the wreck unscathed (much to the surprise of the highway patrol), living proof that the time taken by GM in making this vehicle safe for its passengers was well spent.

My only real problem with the vehicle is in its lack of power worthy of its name.

Would you buy another car from this manufacturer? Yes

Review Date: 3rd September, 2002

22nd Apr 2003, 06:48

A nice review, you sound like an english major, but I have a question for you. You're complaining about the lack of power, but you bought the base model. Didn't you expect less power from the lesser engine?

14th May 2003, 04:34

I bought my '98 Monte Carlo LS when it had 42,000 miles on it in January of 2003. I put a aftermarket stereo in it, being as I didn't have a cd player, but I think that it has plenty of power considering I have drove a Berreta with a 3.1 and mine is faster.

22nd Dec 2004, 10:30

I also own a 97' LS, and in lines of what you stated about the lack of power. For one I agree for the fact that I've compared the car to three other cars. The first car was a 2003 Grand Prix also with a 3.1 liter V6, which was indeed quicker than the LS 3.1. The second car was an 2000 Oldsmobile Intrigue GL 3.5, with it being the fastest of the test cars. The third test car was a 1997 Chevrolet Cavalier LS with the 2.2 liter four cylinder engine. It was actually about the same in performance with the Monte Carlo, which shocked me.

Point being, no the 3.1 liter in the LS is not a performer, but that's why the had the Z34 with the 3.4 liter. Which at this point I'm looking for a junked Z-34 for the engine simply because its that much more powerful.