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PK Automotive Solutions, Deacon Road, Lincoln

02 / Diesel injection and emissions

Seized, snapped or smoking

Injector and glow plug extraction, injector testing and coding, and DPF and AdBlue faults. Specialist diesel work that saves cylinder heads and big bills.

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A technician holding a glow plug extracted in one piece

What we take on

The diesel jobs other garages pass on

Seized injectors

Common-rail injectors corrode into the cylinder head. Elsewhere that often means the head comes off and the bill runs into thousands. We extract them in place with hydraulic pullers rated to 35 tonnes, including injectors that have already snapped or lost their threads.

  • PSA HDi
  • Fiat Multijet
  • Vauxhall CDTi
  • Renault dCi

Broken glow plugs

A glow plug that snaps in the head does not have to mean a head removal. We drill and extract the broken section, fit a thread insert where needed and install the new plug. Garages send us heads with the job half done.

  • Extraction kits
  • Thread inserts

Injector testing, cleaning and coding

Bench testing shows which injectors are actually faulty, so you replace two rather than all four. We clean, flow-test and code injectors to the engine control unit, petrol as well as diesel.

  • Flow and spray testing
  • Ultrasonic cleaning
  • Coding

DPF and AdBlue faults

Particulate filter warnings and AdBlue (SCR) faults are often caused by something else: a sensor, a blocked pipe, a leaking dosing injector. We find the cause before anyone spends money on a new filter.

  • DPF
  • AdBlue / SCR
  • Carbon cleaning

Our position on emissions

We repair emissions systems. We don’t remove them.

Removing a DPF, disabling the EGR or switching off AdBlue makes a vehicle illegal to use on the road, fails the MOT and can void your insurance. It also usually hides a fault that is fixable.

We diagnose why the system is struggling and put that right. Draft: PK to confirm

Diesel prices

  • Seized injector removal Per injector, head in place from £ ––
  • Broken glow plug extraction Per plug from £ ––
  • Injector test Per injector, with printed results from £ ––
  • DPF diagnosis Including sensor and pressure checks from £ ––

Draft Price slots waiting for PK's figures. Prices include VAT. Parts are quoted for your vehicle before work starts.

From the workshop

Recent diesel jobs

  • Diesel February 2024

    Diesel with AdBlue (SCR) system

    AdBlue fault traced to a leaking dosing injector

    In
    AdBlue warning and flow problems. Two vehicles like this came in the same week, and owners had often spent thousands elsewhere first.
    Found
    A leaking AdBlue injector was upsetting the flow through the system.
  • Diesel December 2014

    Vauxhall Vivaro

    Four seized injectors out of a Vauxhall Vivaro

    In
    Injectors seized in the cylinder head: a common problem on these engines. One had already had its top threads stripped.
    Found
    Severe corrosion. Injector 1 had snapped at an unusual point; injector 2 snapped leaving its cap in the head.
  • Diesel October 2016

    SEAT 2.0 PD diesel

    Heavy smoke after an engine swap: worn injector seats

    In
    Smoking badly and cutting out after a replacement engine (customer-supplied) had been fitted elsewhere.
    Found
    The injector and cylinder head were worn away, and the injector seats were beyond saving even with seat-cutting equipment.

Everything in this area

  • Seized injector removal
  • Broken glow plug extraction
  • Diesel and petrol injector testing
  • Injector cleaning
  • Injector coding
  • DPF faults and cleaning
  • AdBlue (SCR) system faults
  • Carbon cleaning

Questions people ask

Another garage says the cylinder head has to come off. Is that right?

Sometimes, but often not. Most seized injectors and broken glow plugs can be extracted with the head in place using specialist tools. Ring us with the vehicle details before you agree to a head job.

Can you remove or delete my DPF, EGR or AdBlue system?

No. Removing or disabling emissions equipment makes a vehicle illegal to use on the road and it will fail its MOT. We repair these systems and find the underlying fault.

I’m a garage. Can I send you just the cylinder head?

Yes. Heads with broken glow plugs or seized injectors can be sent in on their own. See the trade page for how to send work.

Guides

Warning light or smoke?

Tell us the symptoms and any fault codes. If it’s a seized injector or snapped glow plug, call before agreeing to a head removal elsewhere.

Book your vehicle in 01522 589696 Mon to Fri 08:30-17:30, Sat 08:30-13:00