Misfiring issues in my 1.8T VW Passat AWM

75

Asked by Mar 01, 2014 at 10:08 PM about the 2001 Volkswagen Passat GLS

Question type: Maintenance & Repair

I've been having a misfiring issue with my car. I determined it wasn't the coils, I replaced
the spark plugs, and also the angle sensor but it's still misfiring. My mechanic thinks that
my Cam chai tensioner is bad do to a rattle my car makes after starting it up (cold) for
about 30 seconds. Could you please help me out and let me know if this would even be a
cause for misfiring cylinders. I'm so lost and I would like to resolve this as soon as
possible.

11 Answers

118,805

Is check engine light on? If so what are the codes?

6 of 6 people found this helpful.
3,035

The rattle could mean you need an oil change or the oil pump could be clogged. Before you change the tensioner check these... I don't think these would cause a misfire so check fuel pressure and the codes first, check for air leaks, broken hoses or check valves are common issues.write what in here any updates to help more

3 of 3 people found this helpful.
75

The code is P0011.

2 of 2 people found this helpful.
75

I put new NGK Laser platinum spark plugs and also the Camshaft position sensor.

75

When I bought the car 3 months ago I changed my oil with SAE 5W-40 Castrol EDGE SPT 505.01 spec

1 of 1 people found this helpful.
3,035

This code is for a timing issue, it could be the timing valve stuck or damaged or even the timing itself that could be off. One question, does the engine sounds rough? You mentioned a rattle you will need to check where does it comes from. Could be low oil pressure and cause the timing valve to work incorrectly or the tensioner could be damaged also they both make rattle and also if pressure is low the lifters can cause rattle sounds. You could have the oil pump clogged. You need to check those to continue.

4 of 4 people found this helpful.
75

The rattling is coming from the back of the engine by the windshield. It only occurs for a short period of time when the engine is cold. The mechanic I was going through thinks it's the Cam chain tensioner but I think he is starting to just guess and I'm going to move on to another mechanic. Other then the rattle when it's cold it runs good, besides the hiccups from the misfires. Thanks for trying to help me out Hector!

3,035

your welcome. it is common for the tensioner to rattle when the oil pressure is low and it is common to have issues in the oil pressure when good maintenance is not met on that particular engine. damages to the bearing on the connecting rod cause oil pressure to escape and cause a lot of problems many as the one you have. your mechanic needs to remove the crankcase to check the bearings if necessary replace them and the oil pump. you can check the rail on the tensioner to see if it's broken but this is not usual, in fact it's very rare. hope this helps some more

75

And all of this could cause a misfire issue?

1 of 1 people found this helpful.
75

I read that this 1.8T engine has a unlimited mileage warranty on 1997- 2004 model year vehicles, is this true?

3 of 3 people found this helpful.
3,035

the tensioner is supposed to change engine timing if timing is wrong could cause a misfire, so the answer is yes... for the warranty i don't really know because i am outside the US and these things vary too much.

Your Answer

Passat

Looking for a Used Passat in your area?

CarGurus has 27,169 nationwide Passat listings starting at $1,000.

ZIP:

Volkswagen Passat Experts

  • #1
    tenspeed
    Reputation
    1,520
  • #2
    Chrisand Edwards
    Reputation
    1,380
  • #2
    Tom Demyan
    Reputation
    1,380
View All

Related Models For Sale

Used Volkswagen Jetta
578 Great Deals out of 33,126 listings starting at $800
Used Honda Accord
849 Great Deals out of 89,028 listings starting at $1,444
Used Toyota Camry
1,104 Great Deals out of 78,328 listings starting at $1,100
Used Audi A4
255 Great Deals out of 12,264 listings starting at $1,450
Used BMW 3 Series
1,143 Great Deals out of 34,321 listings starting at $1,209
Used Nissan Altima
1,150 Great Deals out of 75,877 listings starting at $900
Used Honda Civic
616 Great Deals out of 54,503 listings starting at $1,500
Used Hyundai Sonata
626 Great Deals out of 54,779 listings starting at $1,500
Used Volkswagen GTI
116 Great Deals out of 7,717 listings starting at $1,400
Used Nissan Maxima
341 Great Deals out of 20,858 listings starting at $1,175
Used Chevrolet Malibu
1,041 Great Deals out of 54,483 listings starting at $1,250

Used Cars For Sale

2017 Volkswagen Passat For Sale
45 Great Deals out of 3,086 listings starting at $11,799
2016 Volkswagen Passat For Sale
47 Great Deals out of 1,136 listings starting at $8,587
2015 Volkswagen Passat For Sale
92 Great Deals out of 3,391 listings starting at $7,990
2014 Volkswagen Passat For Sale
82 Great Deals out of 2,585 listings starting at $6,856
2013 Volkswagen Passat For Sale
66 Great Deals out of 2,564 listings starting at $4,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.