'93 mitsubishi diamante. Bought in '98 has smoked after idling at stops for years and I thought it was normal for this make and have found that a lot of mitsubishi's have the problem also and would like to know the cause. Mechanic's say new engine is needed, but new cars also smoke? Compression is good so what is the underlying problem? Also will not pass deq which is illegal to drive with that much smoke!
The worst 1993 Mitsubishi Diamante problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Airbags10
- Brakes8
- Transmission7
- Engine3
- Acceleration2
- Body2
- Electrical1
- Seat belts1
- Suspension1
- Tires1
- Visibility1
Specific symptoms reported on the 1993 Mitsubishi Diamante
Recalls 3
Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings
- What is wrong
- Under conditions of full lock steering and full suspension travel, the left or right front wheel-side brake hose can crack, resulting in brake fluid leakage.
- Risk
- Brake fluid leakage will cause illumination of the brake warning lamp and reduction in braking effectiveness increasing the risk of a vehicle accident.
- Remedy
- Dealers will replace the left and right front wheel-side brake hoses with revised hose assemblies.
Recall number 96V143002 · Recall details
Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittings
- What is wrong
- Under conditions of full lock steering and full suspension travel, the left or right front wheel-side brake hose can crack, resulting in brake fluid leakage.
- Risk
- Brake fluid leakage will cause illumination of the brake warning lamp and reduction in braking efficiency increasing the risk of a vehicle accident.
- Remedy
- Dealers will replace the left and right front wheel-side brake hoses with revised hose assemblies.
Recall number 96V143001 · Recall details
Seat belts: front: anchorage
- What is wrong
- The rear outboard lower safety belt attachment bolt was inadequately torqued on installation.
- Risk
- The inadequately torqued anchor bolt could fail ina sudden stop or accident. Failure of the safety belt assembly results inincreased risk of injury to the seat occupant.
- Remedy
- Retorque the safety belt attachments to the correct specification.
Recall number 93V044000 · Recall details
Technical service bulletins for the 1993 Mitsubishi Diamante 14
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This is a service newsletter (Tech Talk) that was sent out to dealers.
- This is a Technical Service Bulletin sent to dealers
- This Technical Service Bulletin updates the door adjustment procedure in the Body Section of the...
- Mmsa has determined that under certain conditions, the front lower brake hoses may develop a crack,...
- Information about improved automatic transaxle end clutch
- Information containing additional glass antenna cautions and inspection procedures
- Service manual revision on supplemental restraint system (SRS) cautions and warnings
- Mut-ii scan tool warranty
- Corrected upper oil pan installation procedures - service manual revision
- Corrected cylinder head bolt tightening procedures - service manual revision
1993 Mitsubishi Diamante fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 3.0L 6‑cyl | FWD | 16-17 | 22-23 | 18-19 |
What 1993 Mitsubishi Diamante owners say
Most recent owner complaints, unedited.
While traveling on the highway without prior warning, the dual airbags went off which caused hitting a ditch. Please fill in additional information dealer is aware of the problem. Ph
Owner has taken vehicle to several dealers in her area due to engine making noise. Dealers were unable to fix problem, but thought that brakes were the cause, and replaced them several times. Please describe details.
I am having problems with my braking system. I had my brakes fixed in february 2001, it is now 10/2001 and I have had the brakes replaced again. I am a safe driver and do not drive dangerously or wreckless. I do not understand how wear and tear occured so quickly. My front end vibrates vigorously while breaking. Stopping several feet past the point where I breaked. The brake pedal went all the way to the floor. I have to stop way ahead of a stop. Also, my car shakes and the brake pedal vibrates when I try to stop. As for the transmission, while driving, the car is idled way above the point where it should. The car give a big thump and throw forward when I am trying to break. The transmission is making funny noise, as if I am driving 55 MPH with the car in neutral. As for the fumes, they come in my car and is very unsettling. I can not stand the way the fumes smell. The car is also smoking.
When driving over 30 MPH steering wheel and vehicle shakes and vibrates badly. Also, pulls to the right. Vehicle has yet to be taken to dealer.
Vehicle would remain in lower gears while in normal operation, running rpms up higher than it should have been. Consumer took vehicle to a dealership, who replaced transmission from another vehicle. Vehicle operated normally until september 2000, when transmission would rev up to excessive rpms at speed being traveled. Please provide any additional information/attachments.
Brakes overheated/cracked and had warped when applied while driving. Found out that brakes were underrated along with tires by goodyear. Did not know about this until later. *ak consumer states vehicle uses australian goodyear tires, gta 205/65r15 h1530, tires were replaced with american equivalent goodyear tires and while driving on arizona highways, tires wobble and become unstable after 15-20 minutes, 3 other types of goodyear tires were tried, however all types experienced same scenario, goodyear headquarters informed consumer that the load rating of these tires were only 1400 pounds which may be inadequate for the 5000 pound vehicle, the heat from the underrated tires stresses brake rotors, vehicle has had 3 sets of rotors due to overheating.
While driving about 10 MPH rear ended another vehicle, and air bag did not deploy without a prior warning.
Abs brake light keeps coming on, sometimes pedal goes to the floor. Car zigzags in the back, and eventually stops. Also, driver's side seatbelt gets stuck in the retractor, eventually it comes out/ air conditioner was not working properly because compressor and clutch were stuck. Made a loud noise.
No summary.
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Questions about the 1993 Mitsubishi Diamante
Is the 1993 Mitsubishi Diamante reliable?
Owners have filed 29 complaints about the 1993 Mitsubishi Diamante, fewer than a typical Diamante model year.
What is the most common problem with the 1993 Mitsubishi Diamante?
Airbags, with 10 complaints. Next is brakes (8).
How many recalls does the 1993 Mitsubishi Diamante have?
3 recalls, covering service brakes, hydraulic and seat belts.
What gas mileage does the 1993 Mitsubishi Diamante get?
Official estimates for the 1993 Mitsubishi Diamante range from 18 to 19 mpg combined. The most efficient version (3.0L 6-cyl, FWD) gets 16-17 city and 22-23 highway.
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