cavalier emissions

Honest John Back Room » Technical matters
View Threaded
Fri 12 Aug 2005 00:27
cavalier emissions - cavi
hello again everyone here is another matter i need help with. my L reg 1.7 td cavalier is due for an MOT next week and i want to know about the emissions. i took my car for a run yesterday with my mate following behind in his car to see if he could see anything untoward that i could not see like if the lights were working etc. my logic told me that if the electrics were to give problems it would stand a better chance of showing on the move and also he was looking for any large amounts of smoke. when we got back he said that it was emitting a normal amout of smoke as you would expect from a deisel maybe less. what my question is does it matter about the volume of smoke? does a large amount of smoke contain large amouts of failable emissions or can you get a large amount of said emissions from a relatively clean exhaust? any thoughs on this would be much appeciated
Reply | Report as offensive | Link
Fri 12 Aug 2005 09:38
cavalier emissions - Ross_D
Its not so much the volume of the smoke you have to worry about, its the density/opacity of it. You can have a lot of light grey smoke and it will most likely pass the test, but a smaller volume of darker smoke and it would fail.
Reply | Report as offensive | Link
Fri 12 Aug 2005 09:57
cavalier emissions - spikeyhead {p}
Before the MOT, check, and if necessary change the air filter. If its not had an oil and filter change in a while then change these too. Put a dose of injector cleaner in the tank and take it for a good run at sustained high revs for at least 20 minutes before taking the car to the MOT centre. This has always worked for mine. If it fails aftyer that its probably time for a new car.
--
I read often, only post occasionally
Reply | Report as offensive | Link

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide