what causes jetta four 1,6engine to loose power during acceleratio and back fire when it reaches 1,5rev/min.?

Asked by Dec 27, 2014 at 05:55 AM about the Volkswagen Jetta

Question type: Maintenance & Repair

it causes spark plugs to have a black thin layer of carbon as if its over flooding and a black auxhaust gas comes out. it idles good problem starts when accelerating. i fitted a new petrol pump,timing belt and spark plugs but it is still doing the same thing.

1 Answer

8,855

well first place to start is what is the exact year and engine so i know where to start please and thanks.

Your Answer

Add photo

Related Questions

Search Volkswagen Jetta Questions

Volkswagen Jetta Experts

#1 FordNut
FordNut
Reputation 2,200
#2 Goodwrench707
Goodwrench707
Reputation 2,110
#3 Deathjam4
Deathjam4
Reputation 1,550
View All

Related Models For Sale

Used Volkswagen Passat
163 Great Deals out of 21,605 listings starting at $1,500
Used Honda Civic
510 Great Deals out of 81,687 listings starting at $558
Used Volkswagen GTI
89 Great Deals out of 5,836 listings starting at $2,508
Used Honda Accord
718 Great Deals out of 83,073 listings starting at $500
Used Volkswagen Golf
31 Great Deals out of 2,295 listings starting at $1,900
Used Toyota Corolla
762 Great Deals out of 75,607 listings starting at $1,790
Used Toyota Camry
869 Great Deals out of 92,520 listings starting at $1,300
Used BMW 3 Series
1,038 Great Deals out of 35,400 listings starting at $900
Used Audi A4
200 Great Deals out of 11,075 listings starting at $1,333
Used Nissan Altima
838 Great Deals out of 78,333 listings starting at $470
Used Mazda MAZDA3
216 Great Deals out of 29,728 listings starting at $1,000
Used Chevrolet Cruze
776 Great Deals out of 86,039 listings starting at $3,995
Used Volkswagen CC
72 Great Deals out of 3,100 listings starting at $4,500
Used Volkswagen Beetle
165 Great Deals out of 8,406 listings starting at $1,200
Used Ford Focus
543 Great Deals out of 55,827 listings starting at $1,495