The case studies in this section are a selected sample of a large number of vehicles brought to Sharp Autos for diagnosis and subsequent injector removal.
Vehicle - Vauxhall Vivaro 2007 2.0 cdti
Fault Overview
Recovered to us from a main dealer with injector No.4 broken off at the threaded top section.
Diagnosis
This is caused by the OE tooling (very similar to ebay injector tooling) only pulling on the top
part of the injector.
Removal
Injector very simply removed using our specialist equipment.
Vehicle - Renault Trafic 2008
Fault Overview
Faulty injector
Diagnosis
Excessive fuel correction on No.2 cylinder, caused by ecu attemping to increase fueling to a faulty injector.
Removal
With our extraction equipment applied we increased pressure on the injector to 8 tons. This injector was not moving and an increase of pressure to 9 to 10 tons will always cause these piezo units to shear.
After leaving the 8 ton pressure applied and some forceful manipulation over the period of 3 hours, the injector moved a couple a millimetres with a familiar "pop". Once this initial break was completed, the rest of the extraction was once again straight forward.
Vehicle - Vauxhall Vivaro 2007
Fault Overview
Injector No.3 sheared off half way down under collar.
Diagnosis
The vehicle was brought to Sharp Autos after the faulty injector had been sheared by a mobile injector removal service applying too much force too quickly to these problematic injectors.
Removal
Our team of fabricators developed a new tool to extract the sheared injector which was later successfully removed.
Vehicle - Nissan Primastar
Fault Overview
Faulty Injector
Diagnosis
The vehicle was brought to Sharp Autos after first being taken to a Norwich garage who proceeded to weld a nut to the faulty injector to assist in a crude attempt at removal. This approach led to the injector breaking under force and subsequently flush with the cylinder head.
With a expected repair of a new cylinderhead, the customer arranged transport of the vehicle to Sharp Autos, who after assessment took a different approach to a standard injector pull.
Removal
Using our specialist equipment, our experienced operators removed this troublesome injector in 4 hours.
Vehicle - Renault Trafic
Fault Overview
Vehicle suffering from hesitation under full load
Diagnosis
Sharp Autos' specialist diagnostic equipment discovered the following fault : Injector 3 - Short Circuit.
Removal
Our team removed the necessary engine covers and using our latest technology, found an easy to remove injector (3 Tons extraction). These extractions also include cleaning the injector bore, resurfacing the injector seat and coding the new injector to the ECU.
Vehicle - Vauxhall Vivaro 1.9
Fault Overview
Cylinder head sent to us after suffering a snapped cam belt
Diagnosis
Injectors require removal along with cylinder head overhaul.
Removal
Sharp Autos removed all four injectors, had these units reconditioned, and had the cylinder head overhauled, with bent valves replaced, for a fraction of the cost of 4 new injectors and a recon cylinderhead
Vehicle - Peugeot 807
Fault Overview
Excessive leak back on number 4 cylinder
Diagnosis
Problem confirmed with a simple leak off test
Removal
After strip down and our injector puller applied we removed this injector, had it reconditioned and refitted within a day
Vehicle - Vauxhall Vivaro
Fault Overview
Vehicle taken brought to us after vauxhall dealership diagnosis which condemmed all four injectors. When the dealership had tried to remove them, number 1 injector broke off at the top. They subsequently abandoned the removal attempt and priced up the vehicle for a new engine as head bolts cannot be accessed with injectors in place.
Diagnosis
After arranging delivery to Sharp Autos, we diagnosed a fault only on no 3 injector. Sharp Autos only recommend removing faulty injectors rather than all 4 due to the unnecessary inherent cost involved.
Removal
After removing the damaged injector and the faulty no3 injector, cleaning the injector bore ,re-cutting the injector seat and coding in the new units,this vehicle was road tested and completed for a fraction of the original vauxhall estimate.
You can Contact Us using our contact form or by calling us on:
01344 861 454
Case Studies
