1991 Buick Century 3.3 from North America


Very good looks and very dependable


One fuel injector failed and was replaced.

Struts were replaced.

Shocks were replaced.

General Comments:

Very nice car, looks good, very clean.

Car was stored for about ten years; had 97,000 miles.

Suspect fuel injectors should all be replaced, because it seems to have a miss at 65-70 miles per hr. That indicates a bad injector.

Overall very pleased with the car.

At 55 mph it will average 28 mpg, have got 34 mpg on one tankful on a 4000 mile trip. Average for that trip was 28 mpg.

Would you buy another car from this manufacturer? Yes

Review Date: 13th September, 2010

16th Sep 2010, 12:42

These are great value cars. Could you share with us how much replacing a fuel injector costs on this, and how many there are in the engine?

29th Jan 2013, 08:00

There are 6 fuel injectors for each of the cylinders in the engine that fire individually. I had two that would stop working after I warm the car up and try to drive the vehicle, then it would sputter, then stall out, and sometimes it does start right up after the car cools down. But getting to the point, it's that each fuel injector ran me about $60 a piece, depending on the brand you buy. And if you get the Haynes manual for the vehicle or already have one, then you can do it for nothing.

1991 Buick Century Custom 3.3 EFI from North America


A solid, great-running car, but plagued by GM design "innovations" and service issues


Muffler fell off and was dragging on highway (this was exciting), apparently rear tailpipe mount was missing and had been wired back on. A difficult repair chore (had to saw off broken end with thick welds, and replace mount).

Hard starting, very long cranking -- in-tank fuel pump was not "priming" on initial cranking. Eventually traced it down to fuel pump "start" relay (in right front fender) - just a $5 part.

Ongoing issue with defective fuel injectors (see online info from Linder and GM factory service bulletins). Windings short out with alcohol in fuel (mandatory in our emissions area), or maybe just with age. New Buick injectors are expensive and are no longer warrantied past 1 yr (according to dealer). But found slightly different replacement injectors with larger windings are available from several sources (got a whole set at a salvage yard) ; no severe missing or dying out since. (previous GM car used Bosch injectors; no problems in 210,000 miles -- but GM thought they could do it better?)

About 95,000 miles; went to replace timing chain (it was sloppy). Timing chain replacement was straightforward, but managed to bend up harmonic balancer sensor rings getting it out (no provision made for attaching any kind of puller, and no room to work -- thanks, GM). Put replacement harmonic balancer in, front shaft started to leak (badly). Replaced front seal 3 times (and changed brands) before I found one that would hold.

Meanwhile, all this seal changing caused some damage to front of oil pan seal, so it seeps some oil (but it's a real bear to get oil pan off, not like Buick 3.8, so it's just going to have to keep seeping...)

Recently replaced spark plug wires and spark plugs -- changing rear plugs and wires is a chore. Have to disconnect and remove top front motor mount (yes!) to remove channel for front spark plug wires (?).

And watch tire sizes -- front tires not a problem, but if you go even one size larger on rear tires, this inane "shield" thingie in left rear wheel-well sticks out and rubs on tire.

Buick power windows issue -- well known from other web sites; got to where driver's window was taking 10-15 minutes to close. Only a complete window assembly is available from Buick, an expensive repair option. But recently, a window-motor-only kit has become available. One must do the usual "beat-n-drill-the-rivets-out" 2-hr exercise, but certainly worth the $400 savings...

Brake wear issue: For some obscure reason, when the brake pads get down to the "wear warning" tab, the inner pad has usually already failed and eaten the brake rotor. Replaced 3 rotors so far (not always on the same side). Have also installed rebuilt calipers, new slider hardware and new brake hoses, but the problem persists (check those brakes every spring and fall!). Get "lifetime replacement" brake pads. Could be the brake pads are at fault, I don't know.

Also (last fall) needed to replace a suddenly-leaking heater core -- this was "fun".

General Comments:

3.3 engine is a strong runner, and gives some serious competition to the former 3.8 engine (perhaps even a bit smoother). Always starts and runs in any weather (assuming fuel injectors haven't shorted out).

Cooling system and electrical system have been relatively trouble-free.

3-Sp. auto transmission is not as efficient mileage-wise as the 4-Sp in the Olds (22-23 mpg in mixed driving), but hopefully it will be less prone to "sudden input sprag failures in the night" & suchlike (thanks, GM).

Brakes are efficient and effective. (wife reports several panic situations where the previous car "would never have stopped in time")

The trunk is roomy (though not a flat floor) -- back seat is somewhat cramped (very difficult to get some types of child seats fastened in, for instance).

Front seats are comfortable & adjustable, though have never thought the "seat-belt-on-the-door" was a good idea (this also causes blind spots in side visibility).

Air conditioning has worked well.

Space for installation of radio or stereo is unusually short and cramped, and seems to get very hot -- not sure what that's all about.

Handling is fairly "sure" and steady, I think I had to replace one CV shaft, but no other front end work.

Would you buy another car from this manufacturer? Don't Know

Review Date: 17th June, 2009

10th Dec 2009, 08:58

Wow, I am surprised you even LIKE this car.