Engine Idles Rough or Stalls When Coldon Mazda Miata MX-5

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.

RepairPal Verified
Average mileage : (–)
EngineAffected: = affected_variants_list(car_problem_description)
4 Years Affected: 1990, 1991, 1992, 1993
5 people reported this problem
0 people shared problem details
Related Items:
A loud ticking noise (hydraulic valve lifter noise) may be heard from the top of the engine, pa...
!992 mazda miata seems to burn a lot of gas for a 4 banger. I can smell gas fumes from the tail...
The passages for the Exhaust Gas Recirculation (EGR) system can become restricted or clogged ca...
30,000 miles rough idle at 750 rpm,once at idle,the rpm's start to drop causing a rough idel.t...

Related Content