1991 Mazda Miata MX-5 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Mazda Miata MX-5

1991 Mazda Miata MX-5 Problems

Ticking Noise From Valve Lash Adjusters Due to Infrequent Oil Changes

A loud ticking noise (hydraulic valve lifter noise) may be heard from the top of the engine, particularly when the engine is still cold. The noise may occur more frequently on higher mileage vehicles; Hydraulic valve lash adjusters may need to be replaced to correct this issue. Following the maintenance schedule for oil changes will also help prevent a recurrence of the noise.

Engine Idles Rough or Stalls When Cold

The engine may idle roughly or stall when it's cold because the oil pump pressure relief plunger is sticking. Failure is usually due to wear and it causes excessive oil pressure to pump up the hydraulic valve lifters keeping the valves from closing completely, which results in a loss of compression. The oil pump will need to be replaced in this case.

Misfires Under Load

Misfires under load (acceleration) can be caused by spark plug wires arcing to the cylinder head in the spark plug wells. Water in the spark plug wells can also cause the same problem so careful diagnosis is needed.

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1991 Mazda Miata MX-5 Questions

i put the battery in backwards and tried to start the car, realized my mistake, (1 answer)

corrected the batery, now the car is dead, what needs to be fixed?

Why is there no pressure at the clutch, or fluid coming from slave cylinder? (2 answers)

I replaced the clutch slave and master cylinders myself. However, for some strange reason after replacing them and attempting to bleed the system, the clutch pedal won't build any pressure. Also, when opening the bleeder on the slave cylinder no fluid comes out, but I can feel air moving in a...

I have a 1991 Miata mx-5. recently it began to have a performance issue. (1 answer)

I have a 1991 Miata mx-5. recently it began to have a performance issue. It seems like its missing, Idles rough except when revved to about 1500 to 2000 rpm the it runs smooth. Let off the gas when the revs fall below 1500 it seems to run like it is missing again. It drives and seems to have powe...

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1991 Mazda Miata MX-5 Recalls

Recall 92V159000
A HARDTOP HOIST ACCESSORY KIT WAS SOLD TO CUSTOMERS WHO HAVE THE MIATA WITH A HARDTOP. THE PLASTIC BUCKLES USED TO ADJUST STRAP TENSION CAN BREAK AFTER THE HARDTOP HAS BEEN SUSPENDED BY THE HOIST.
Recall 91V079000
A RETURN FLUID LINE OF THE FRONT BRAKE SYSTEM IS MISCONNECTED TO A REAR BRAKE FLUID RETURN. WHEN THE ABS SYSTEM COMES INTO USE, ALL THE FLUID FROM THE FRONT BRAKES GOES TO THE REAR BRAKE SYSTEM. THE FLUID RETURNS TO THE FRONT SYSTEM WHEN THE BRAKE PEDAL IS RELEASED.

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1991 Mazda Miata MX-5 Reviews

I've owned my 1991 Miata for ten years and am the second owner. I have owned a lot of cars over the years, before and since the Miata, but this is the only car I have kept for a long time. I simply cannot bring myself to sell it. It requires almost nothig yet gives back so much. It's fun, economical, nearly bulletproof (only problem to date other than maintenance was a power window motor......

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