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Greg, Shop Owner
Category: UK Car
Satisfied Customers: 7129
Experience:  17 years Shop Owner /Technician. 27 years experience,
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Car has no power and its misfiring and engine light is

Customer Question

car has no power and its misfiring and engine light is flashing
Submitted: 2 years ago.
Category: UK Car
Expert:  Greg replied 2 years ago.

Hi .

Engine is misfiring and this will set a misfire code in the management system and set the check engine light on to flash .

This means you need to sort out this issue fast and not use the car as a misfiring engine can damage the expensive catalytic converter.

First you need to check for codes this will help you track down which cylinders are missing .

So if you get a code P0303 or P0304 then you have a misfire on cylinder 3 and 4 so these two cylinders need checking .

Possible cause for misfiring engine :

Spark Plugs .

Injectors . (fuel pressure ,bad injectors )

Coil pack or coil boots .

Spark plug cables .

Or a mechanical issue , valves ,low engine compression ,timing out of spec ,catalystic converter blockage .

As you can see there are a few things that could cause this issue .

If the car has not been serviced in a long time then start with a tune up and do a compression test so you know what condition the engine is in .

Then if needed please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.

Your deposit does not pay me until the answer is rated in a positive way,
A bad rating does not constitute a refund.

If you are not happy or you have sorted out your problem before the answer then please let me know with the reply button .

Kind regards Greg.

Expert:  Greg replied 2 years ago.

Just checking in to see if you still need assistance with this issue .

Kind regards Greg