Do any of you guys know much about diesel cars?

"Twingo Tamer - About to descend into project car hell." (oppisitelock)
08/30/2014 at 09:30 • Filed to: None

The family wagon started spewing constant black smoke and saying check emissions. I think it's the exhaust gas recirculation valve, can any of you guys weigh in?

DISCUSSION (20)

Bandit > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 09:31

That seems like a logical guess.

Sportwägen, Driver Of The Red Sportwagen > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 09:35

Soot build up in EGR valve???

Kinja'd!!!

Twingo Tamer - About to descend into project car hell. > Sportwägen, Driver Of The Red Sportwagen
08/30/2014 at 09:37

Yeah that's what I was thinking. Would be strange if that's the case though, it recently got a new egr.

TheBloody, Oppositelock lives on in our shitposts. > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 09:41

Probably wouldn't hurt to check the O2 sensors as well if the egr is new. Have you seen a rise in fuel consumption?

Sportwägen, Driver Of The Red Sportwagen > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 09:42

Hm, that is interesting. IDK what the problem could be then... does it have a catalytic converter?

Twingo Tamer - About to descend into project car hell. > TheBloody, Oppositelock lives on in our shitposts.
08/30/2014 at 09:46

Dont know if the fuel consumption has worsened I'll check the trip computer when they bring the car back, I think theyre having it towed. What would you do to check the o2 sensor? I've never diagnosed one before.

Twingo Tamer - About to descend into project car hell. > Sportwägen, Driver Of The Red Sportwagen
08/30/2014 at 09:46

I believe so.

hike > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 09:56

Any chance you have a code scanner to see if it's throwing a code? Also how does it sound?

TheBloody, Oppositelock lives on in our shitposts. > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 09:56

Scanner should give you the error code that's being thrown, from there you can match the code to the part that is at fault.

Twingo Tamer - About to descend into project car hell. > TheBloody, Oppositelock lives on in our shitposts.
08/30/2014 at 10:02

I'll take it to get scanned then, I know a guy who reads codes pretty cheaply.

Twingo Tamer - About to descend into project car hell. > hike
08/30/2014 at 10:03

I'll probably take it to get the codes read. I havent seen the car in person yet, according to my mam it was running smoothly other than the smoke.

TheBloody, Oppositelock lives on in our shitposts. > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 10:10

Any auto zone or pepboys like place will read the codes for free, but then you'd have to Google the error codes.

Twingo Tamer - About to descend into project car hell. > TheBloody, Oppositelock lives on in our shitposts.
08/30/2014 at 10:14

We don't have those shops in the UK and the going rate for a code read is about $40, this mechanic does them for less than $10.

TheBloody, Oppositelock lives on in our shitposts. > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 10:20

Ah okay, fair enough. Normally emissions faults can be due to bad O2 sensor.

CAR_IS_MI > Twingo Tamer - About to descend into project car hell.
08/30/2014 at 10:42

Year, make, model?

Twingo Tamer - About to descend into project car hell. > CAR_IS_MI
08/30/2014 at 10:55

2006 renault laguna 1.9.

bob and john > Twingo Tamer - About to descend into project car hell.
09/01/2014 at 21:12

if its spewing BLACK and saying check emissions, I don't think its the EGR valve. a more likely culprit is the DPF (diesel particulate filter) could have broken/gone bad/worn out.

Twingo Tamer - About to descend into project car hell. > bob and john
09/02/2014 at 10:29

We actually fixed it between me posting and your comment. We cleaned the EGR and it's running great again.

bob and john > Twingo Tamer - About to descend into project car hell.
09/02/2014 at 11:07

intresting. We have an egr valve on my dads tdi a3 tht went bad, but nvr smoked...just gave us acheck engine light

Twingo Tamer - About to descend into project car hell. > bob and john
09/02/2014 at 11:30

I imagine it depends on which position the valve sticks in. I think the smoke was because it stuck in a place that made the car run rich.