55266963 Injector Problems – Symptoms, Causes & Fixes

Engine: 55266963 1 compatible injectors From £208

Common Injector Failures on the 55266963

The 55266963 engine uses high-pressure common rail diesel injection. Over time, injector nozzles wear, seals degrade, and internal components lose calibration. This leads to a range of drivability symptoms that worsen if left unaddressed. We stock 1 tested replacement injectors for this engine from Bosch.

Vehicles fitted with the 55266963 include models from Jeep. If you are experiencing any of the symptoms below, your injectors may need testing or replacement.

Symptoms of Injector Failure

Related Fault Codes

P0201 P0202 P0203 P0204 P0263 P0266 P0269 P0087 P0089 P0300

How to Test 55266963 Injectors

Leak-off test: Connect clear hoses to the injector return lines and compare fuel volumes at idle. The injector returning the most fuel is likely worn.

Correction values: Use a scan tool to read injector correction (IMA) values. Readings beyond ±3 mg/stroke indicate wear.

Resistance check: Measure resistance across the injector connector pins with a multimeter. Compare to manufacturer specs.

Complete Testing Guide Leak-Off Test Guide

55266963 Injector Replacement Cost

Parts (per injector)

£208–£208

Labour

£150–£400

Total (per injector)

£358–£608

Full replacement cost guide

Compatible Injectors for the 552669631 found

0445110658Bosch

£207.90

Most Common Injector Part Numbers for 55266963 Engine

0445110658Bosch

£207.906 vehicles

Vehicles Using the 55266963 Engine

Jeep RENEGADE55266963

Related Engine Codes

55263088 55280444 ENS EXF

Frequently Asked Questions

What are common injector problems on the 55266963 engine?

The 55266963 engine commonly suffers from injector seal failure, nozzle wear causing poor spray patterns, and back-leak issues. Symptoms include rough idle, black or white exhaust smoke, hard starting, and increased fuel consumption. These issues typically appear after 100,000–150,000 miles.

How much does it cost to replace injectors on a 55266963 engine?

A remanufactured injector for the 55266963 engine typically costs £208–£208 per injector. Labour adds £150–£400 depending on accessibility. We found 1 compatible injectors for this engine.

Which vehicles use the 55266963 engine?

The 55266963 engine is found in vehicles from Jeep. Common models include Jeep RENEGADE.

How do I test the injectors on a 55266963 engine?

Perform a leak-off test by connecting clear hoses to each injector return line and comparing fuel volumes at idle. You can also check injector correction values with a diagnostic scan tool or measure electrical resistance with a multimeter.

Injector Compatibility Checker

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Need a Replacement 55266963 Injector?

We stock 1 tested replacement injectors for the 55266963 engine. All remanufactured, bench-tested, and supplied with a 12-month warranty.

View All Injectors Replacement Cost Guide Call 020 3355 6581