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Check U3936 Engine Code

U3936 Engine

When you check engine light came on code U3936 the reason should be . However your vehicle's manufacturer may have a different definition for the U3936 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U3936 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

U3936 Possible Solution:

In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.

U3936 Code Meaning :

U 3 9 3 6
OBD-II Diagnostic Network (U) Trouble Code For Engine Ignition System Or Misfire Injector Circuit Malfunction - Cylinders Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector) Ignition Coil A Primary/Secondary Circuit Malfunction

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

U3936 OBD-II Diagnostic Network (U) Trouble Code Description

U3936 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Reason For U3936 Code

The reason of U3936 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U3936 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.