Having problems with your Volkswagen Jetta ?

About three weeks my daughter bought gas and it seems there was water in it. Everytime she would slow down or stop the engine would stall out. We drained the tank by siphoning all the gas out and changed the gas filter. Now the same problem happens everytime she buys gas but only on the day she buys gas, the next day it drives fine and does great until gas needs to be purchased again. I was going to remove the gas tank and make sure nothing was in it. Is this the correct solution ? Where is the

Posted / edited by AnonymousUser on : 24-01-2022

Answers :

Hello
\015\012I would check the fuel pressure 1st and clean the throttle body and the Idle speed control valve, they get sludged and make the car more prone to stalls on deceleration and near idle. To do the cleaning follow the procedure below.
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To clean the throttle valve and idle speed control system get a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, spray it into the air intake of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speeds problems you may need to seek the help of a professional.

You can't siphon out the entire content of the tank - by design there will always remain in it the reserve, 5 liters. So the dirt and water are still there, at the bottom of the tank so yes, you must take it off to clean it thoroughly.\015\012The tank is located on the bottom of the chassis, under the rear seats. It's held in place by 2 straps. The fuel pump is in the tank, a common part with the sump.
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