I was driving my 02 a4 1.8t it smoked on the right side bottom of the motor and now it won't start it turns but won't start it didn't over heat or anything dose any one know what it might be

Asked by Jul 13, 2015 at 02:07 PM about the 2002 Audi A4 4 Dr 1.8T quattro Turbo AWD Sedan

Question type: Maintenance & Repair

Would the cattylac converter make it not start if it goes bad

6 Answers

35,535

The catalytic converter will not cause it not to start. If the converter is plugged up a loss of power will be noticed, but it will still start. Same goes for the O2 sensors. You need 3 things for it to start and they are fuel and air, properly timed spark and properly timed compression. You need to find out which one is missing. Does it have spark at the spark plugs? Does it have fuel at the proper pressure at the injector? Does it have sufficient compression?

I checked the fuel pump its huming so it's working I have not checked the spark plugs what's the best way to check for sparks ?

And I don't know how to check sufficient compression I was driving and it just smoked from the bottom right of the engine and shut off I never lost power but it didn't turn and tell we waited about an hour but it dosnt start any more I drove it daily but a week before this happen I notice that the car won't start like it normally dose on the first try it was taking few try's and then this happens

17,330

Loosing power is the first symptom of a clogged catalytic converter but it can get clogged so bad that the vehicle will not start. I know had it happen to me before. To check for a clogged catalytic converter do this test at night let vehicle idle for about 5 - 10 minutes then take a look at the converter if it starts to glow red you have a clogged catalytic converter and also check the exhaust manifold I have seen them get clogged up also it will also glow red if clogged.

17,330

If vehicle is not starting you will have to drop the front end of the converter from the front of the exhaust pipe coming from engine then try to start vehicle if it starts up and runs that was your problem but no promises that is your problem.

8,325

have you tryed checking your oil and coolant levels? and was the smoke white ? what did it smell like? if it smelt like some one pissed on the ground thats antifreeze, if it smelt like a chainsaw thats oil leaking, if it smells like gas you either had the exhaust backed up or a gas leak. It chould also be a fired ground cable if it smelt like burning rubber or heated metal.

Your Answer

Add photo

Related Questions

  • 2001 Audi A4 1.8T started ticking 20 answers

    Hi everyone, I need your help I recently got a 2001 audi a4 after my 03 jeep cherokee died on me (RIP). The audi has been driving so well, until this morning on my way to work. I started the car, a...

    2001 Audi A4 1.8T

    -

    Maintenance & Repair

  • Car starts and it shuts off/loses power 153 answers

    I have a 2003 Audi A4 Turbo.93K on it. When I start the car, the engine starts and as the RPM gauge goes up, it just goes right back down, the car shutss off, as if it can not stay on, sometimes its s...

    2003 Audi A4 1.8T Quattro

    -

    Maintenance & Repair

  • 2000 Audi A4 Quattro 1.8t not starting

    Okay soo I have a 2000 Audi A4 Quattro 1.8t, let me just say I love this car but omg the issues I've had since getting it. So recently it's decided not to start. It has power & seems to want to bu...

    2000 Audi A4 1.8T Quattro

    -

    Maintenance & Repair

  • Car will try to start but won't turn over 6 answers

    I have a Audi A4 2003 1.8t 5 speed manual car I have drove my car after I change the oil 5W 40 and now it won't start but was driving fine before I did my oil change and this is my first time using...

    2003 Audi A4 1.8T

    -

    Maintenance & Repair

A4

Looking for a Used A4 in your area?

CarGurus has 11,991 nationwide A4 listings starting at $800.

ZIP:

Search Audi A4 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Audi A4 Experts

#1 Deathjam4
Deathjam4
Reputation 2,900
#2 FordNut
FordNut
Reputation 770
#3 lukeyramone
lukeyramone
Reputation 480
View All

Related Models For Sale

Used BMW 3 Series
1,457 Great Deals out of 38,439 listings starting at $1,890
Used Audi A6
172 Great Deals out of 7,641 listings starting at $950
Used Audi S4
70 Great Deals out of 918 listings starting at $3,450
Used Mercedes-Benz C-Class
619 Great Deals out of 32,115 listings starting at $2,500
Used Audi A3
75 Great Deals out of 6,824 listings starting at $3,500
Used BMW 5 Series
603 Great Deals out of 15,216 listings starting at $2,495
Used Honda Accord
1,001 Great Deals out of 74,760 listings starting at $899
Used Ford Mustang
534 Great Deals out of 42,627 listings starting at $1,699
Used Audi A8
46 Great Deals out of 1,807 listings starting at $3,795
Used Chevrolet Camaro
378 Great Deals out of 40,505 listings starting at $3,500

Used Cars For Sale

2017 Audi A4 For Sale
5,312 listings starting at $32,631
2016 Audi A4 For Sale
14 Great Deals out of 265 listings starting at $24,998
2015 Audi A4 For Sale
29 Great Deals out of 377 listings starting at $18,750
2014 Audi A4 For Sale
70 Great Deals out of 1,095 listings starting at $15,000
2013 Audi A4 For Sale
54 Great Deals out of 757 listings starting at $12,995