Question about Buick Cars & Trucks

1 Answer

Where do find the vapor lock on my 1999 Buick century

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Buick Master
  • 673 Answers

Vapor lock occurs when the gas in a fuel line turns from liquid to vapor, before it reaches the engine. The first signs of vapor lock are normally when your engine begins to run roughly. The engine may sputter and hesitate. It will then stall completely and refuse to restart. It may seem like the car is out of gas or the fuel pump has failed. While these are possibilities, vapor lock may be the problem.

Posted on Jan 30, 2015


1 Suggested Answer

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why is it hard to start when hot?

it sounds like vapor lock in the gas lines or might need to replace spark plugs but if it happens only when its hot vapor lock sounds right .

I’m happy to help further over the phone at

Aug 17, 2015 | 2005 Buick Century

3 Answers

Remote on my 1999 Buick Century

Get a remote replacement is faulty.

Jul 29, 2008 | 1999 Buick Century

1 Answer

My buick rendevouz star when is cold but after park and start again don star? what can be?

Auto choke is sticking, If you do lots of short runs this happens. Your local car accessory shop will get you a spray to use.

Jul 22, 2014 | 2002 Buick Rendezvous

1 Answer

What is a fuel vapor on 2001 buick century

If you use "fuel vapor lock" in the search button, you will get references discussing adding a fuel return line to the fuel tank and/or adding a fuel pump assist. One of these may cure your problem.

Per Wikipedia: Vapor lock
is a problem that mostly affects gasoline-fueled internal combustion engines.

It occurs when the liquid fuel changes state from liquid to gas while still in the fuel delivery system. This disrupts the operation of the fuel pump, causing loss of feed pressure to the carburetor or fuel injection system, resulting in transient loss of power or complete stalling. Restarting the engine from this state may be difficult.

The fuel can vaporize due to being heated by the engine, by the local climate or due to a lower boiling point at high altitude. In regions where higher volatility fuels are used during the winter to improve the starting of the engine, the use of "winter" fuels during the summer can cause vapor lock to occur more readily. Is it a recent problem? Do you live in an area that uses gasoline from the high volatility "fracking" crude?

I hope this helps, . . Dit

Jul 07, 2014 | 2000 Buick Century

1 Answer

Vehicle starts then you drive for short trip 2 miles turn off wont star let sit for 10 minutes starts up electrical system been checked a ok

It almost sounds as though you are experiencing vapor lock. Have your vehicle checked for fuel pressure ratings and see if they meet OE specs

May 27, 2014 | 1999 Buick Century

1 Answer

Vapor locking

Car don't vapor lock any more. Check fuel pressure.

Oct 30, 2013 | 1998 Buick Century

1 Answer

Please explain what is evap solenoid control circuit malfunction

Fuel vapor leak check your gas cap.Make sure its tight

Feb 13, 2013 | 1999 Buick Century

2 Answers

Cant fill my tank,pump keeps shutting off when i try to put gas in my 1999 Buick Century

Hello topromeo.

In modern vehicles there is a system in place to capture and burn the vapors when filling the fuel tank.
This consists of a carbon canister, hoses and valves.
The vapors when filling the tank are routed through the carbon canister and stored there until the car is driven.

Under certain conditions these valves need to close to test the system integrity.
In your case there is a valve that has stuck closed and not allowing vapors to vent through.

This is called a canister vent valve and is located under the car on the carbon canister.
It should be available at your local Buick dealer.

If you require further advise on this subject please ask me here.

Thank you for using FixYa.


Feb 10, 2011 | 2002 Buick Century

1 Answer

I had car inspected and it failed emission code p-0442 came up, I own a 1998 Buick Century Custom, What does this code mean and how do i fix the problem

This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine

Jan 11, 2011 | 1999 Buick Regal

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

215 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

85206 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides