1999 ranger 4.0 4 codes

[dmb2613]

4.0 engine , po133,po135, po155 and p1309 I am thinking put in 2 co2 sensors ?

 

[franklin2]

I think I would investigate this first, the O2 sensors afterward,

P1309 DTC & Aftermarket Camshaft Synchronizers

Some of y'all may recall reading my post a few months ago about the POS 4.0L in my 99 Ranger that kept blowing head gaskets. Truck ran good except for that. Don't want to rehash the story, but got a used replacement engine from a donor truck and truck seems to be running good again for the most...

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Ford Ranger P0133: Oxygen Sensor Slow Response (Bank 1 -Sensor 1) | Drivetrain Resource

P0133 is a common OBDII code that occurs in many vehicles, including theFord Ranger. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels. The O2 sensor is responsible for helping the ECM meter oxygen levels in the exhaust...

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Ford Ranger P0135 OBDII Code Diagnosis | Drivetrain Resource

P0135 is a very common OBDII code that occurs in the Ford Ranger. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: P0135: Heated Oxygen Sensor → Sensor Heater Circuit Malfunction → Bank 1, Sensor 1 The purpose of the...

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Ford Ranger P0155: O2 Sensor – Heating Element Failed (Bank 2 – Sensor 1) | Drivetrain Resource

P0155 is a very common OBDII code that occurs in the Ford Ranger. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 2 sensor 1. The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor up to normal operating temperature after

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