exhaust gases coming into vents of car w/ windows/doors closed?

Question

what problem could this signify? where should i start looking? i just installed a new complete exhaust (including converter, welded) on my car.

i took my car in a couple weeks ago, and the problem seemed to be fixed, now it's doing it again.

i know it's some sort of leak, but how and where would i start looking? it's not like i can soap up the exhaust pipes (like on a flat tire).......

i can't feel under it, because it is too low to the ground...

Answer 1

you plug the exaust with a rag and listen and feel for the leak
you will need to take it to an exaust shop they will find it for you and give you an estimate if you dont have access to a lift or wielding equipment you wont be able to fix it anny way sorry

Answer 2

while the car is on you have to pass your hand near the piping but be careful not get burn

you will feel some are at one point that is the leak so if you replace your manifold and dont replace with new gastek that could be the problem

also you have to look at every point where you use welding, you have to follow complete system to find the leak and when you find it you can use muffler cement, you can get that in any auto parts

Answer 3

you will possibly have a misty high-quality gas leak it somewhat is heading off the sensors--probable around the gas injection area of your motor vehicle. i'd get this appeared at from a ASC qualified mechanic ASAP---and forgo value over risk-free practices. do no longer enable this project go on plenty longer---power w/ domicile windows down and don't use the AC device. evade lighting fixtures up too--given there is skill for a flashpoint hearth risk right here.

Answer 4

check where the air intake for the heater and a/c is under the hood. that is where the fumes are getting into the vents.

Answer 5

you have a exhaust leak get it repaired quikly