Tell us the symptoms
Share the warning lights, driving symptoms and anything that has already been checked.
DPF warning light, loss of power or a suspected diesel fault? Peterborough
DPF Cleaning, Pump and Injector Testing
DPF cleaning and diesel fuel-system testing for all makes and models of cars and vans. We investigate the problem, explain the test results and agree any further work with you first.
- 01 Peterborough
- 02 Clear findings
- 03 Work agreed before we begin
Our approach
Testing produces information, not automatic permission for more work. We explain the results and agree any next step with you first.
Common signs What drivers notice
When to get it checked.
If any of these sound familiar, describe the symptom when you contact us. Small details can help narrow down where to start.
- 01DPF warning light
- 02DPF repeatedly blocking
- 03Loss of power
- 04Limp mode
- 05Difficult starting
- 06Rough running
- 07Excessive smoke
- 08Poor fuel economy
- 09Suspected injector fault
- 10Suspected fuel-pump fault
Inspect / explain / agreeWe check the vehicle in front of us — not a generic checklist on a sales page.
Exact checks depend on the symptoms, vehicle and what can be confirmed safely.
What we look at Guided by the fault
A practical inspection, followed by a clear plan.
- Investigate DPF and diesel performance problems
- Clean blocked DPF systems
- Test diesel injectors
- Test diesel fuel pumps
- Assess symptoms such as smoke, poor economy or limp mode
- Test all makes and models of cars and vans
- Provide results and discuss the next step before additional work begins
How it works Three useful steps
From symptom to sensible next step.
No hidden process. You know where the job stands and when a decision is needed.
We investigate and test
We examine the DPF or diesel fuel system in line with the problem you have reported.
Review the results
We explain what the testing shows and agree any further work with you before it begins.
Why a small garage? Fewer hand-offs
The person explaining the job is close to the work.
That makes it easier to ask a question, understand a recommendation and agree the scope. It also means JHA has to stand behind the quality of the conversation as well as the repair.
Diesel specialist questions Straight answers
Before you book.
These are general answers. The right advice still depends on the vehicle and what it is doing.
Can you test diesel injectors and fuel pumps?
Yes. JHA Automotive can test diesel injectors and diesel fuel pumps, explain the results and discuss the sensible next step before additional work begins.
Do you work on diesel cars and vans?
Yes. Testing is available for all makes and models of cars and vans.
Will DPF cleaning always solve the problem?
No result can be guaranteed without investigating the vehicle. We look at the symptoms, carry out the relevant work and explain what the results mean for the next step.
Booking & enquiries Diesel specialist
Tell us what
is happening.
Include when the symptom occurs, anything that has changed and any previous checks or repairs.
Work agreed firstWorkshop confirmation.Your details are emailed securely. The workshop confirms the booking with you.