Lexus GS400 Gas cap won't click or tighten Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(34)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(34)

Gas cap won't click or tighten Inspection Service

How much does a Gas cap won't click or tighten Inspection cost?

On average, the cost for a Lexus GS400 Gas cap won't click or tighten Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2000 Lexus GS400V8-4.0LService typeGas cap won't click or tighten InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
1999 Lexus GS400V8-4.0LService typeGas cap won't click or tighten InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1998 Lexus GS400V8-4.0LService typeGas cap won't click or tighten InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example Lexus GS400 Gas cap won't click or tighten Inspection prices

One of the more disconcerting things that can happen in your car is the Check Engine warning light. And while the Check Engine light should never be taken lightly, often the problem is remarkably simple: a gas cap that won’t click or tighten.

How this system works:

Your gas cap is a very simple screw top lid. Unlike, say, a mason jar, the cap to your gas tank has the threads, rather than the tank itself. The purpose of the gas cap is to keep the gas in your vehicle secure. Without a gas cap, the gas can slosh out of the tank, or evaporate, and it is more prone to freak accidents that could cause fires, explosions, or internal damage to your vehicle.

Common reasons for this to happen:

There are four reasons why a gas cap won’t click or tighten:

  • Damaged gas cap: A damaged gas cap is far and away the most common culprit for a gas cap that won’t click or tighten. Gas caps with damaged threading won’t be able to lock tightly into the gas tank. Sometimes you can see a crack or break in the gas cap, but often the damage is not visible. Certain makes and models have notoriously finicky gas caps, and some have even resulted in recalls.

  • Damaged gas tank threading: The gas cap is part of a two-piece equation. There’s the gas cap, with the outward threading, and the top of the gas tank, with the track for the threading. If this track for the threading becomes damaged, the threading has nowhere to lock into, and the gas cap won’t click or tighten.

  • Dirty cap or tank: Everyone has accidentally tried to screw on the lid to a jar when something was caught in the threading. It simply won’t work. A gas cap is no different; if there’s debris in the threading of the gas cap, or in the track of the tank, the cap won’t screw on correctly.

  • Broken spring load: Many gas caps are spring loaded. These gas caps rely on a spring that holds the cap in place when it is locked in. If this spring breaks or is damaged in any way, there will be no pressure holding the cap in place.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the cause of the gas cap that isn’t clicking or tightening, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

A mechanic will assess your gas cap and gas tank and should easily be able to determine the cause of the problem. After figuring out why the cap won’t click or tighten, the mechanic will clean, repair, or replace the component that is not working. A malfunctioning gas cap is one of the simplest repairs in the automotive industry.

How important is this service?

A gas cap isn’t the most vital part of your vehicle, but it is something that should be in working condition. A properly working gas cap is a safety measure, and keeps debris from getting into your gas tank. A gas cap that won’t properly tighten will often trigger the Check Engine warning light. If you don’t get the gas cap replaced, the light will stay on, and you won’t be alerted if another, more severe issue arises.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(34)

Rating Summary
33
0
0
0
1
33
0
0
0
1

Tien

23 years of experience
903 reviews
Tien
23 years of experience
Lexus GS400 V8-4.0L - Timing Belt - Berkeley, California
Thank You Tien For Getting My Baby Back On The Road. Your Super Efficient And Hard Working.... Keep Up The Great Work And I Most Definitely Will Be Using You For Services In The Future

Joseph

33 years of experience
540 reviews
Joseph
33 years of experience
Lexus GS400 V8-4.0L - Intake Manifold Gaskets - Dallas, Texas
Very patient an a great teacher to learn from.

Rodney

36 years of experience
542 reviews
Rodney
36 years of experience
Lexus GS400 V8-4.0L - Check Engine Light is on - Sacramento, California
Very professional and educated told me honest answers regarding my check engine light.

Alex

6 years of experience
82 reviews
Alex
6 years of experience
Lexus GS400 V8-4.0L - Check Engine Light is on - Alameda, California
Good guy, explained thoroughly on what the next steps would be to fix my vehicle. Will be booking him again to help replace the parts that need fixing! Thanks Alex.

Excellent Rating

(34)

Rating Summary
33
0
0
0
1
33
0
0
0
1
Number of Lexus GS400 services completed
374+
services done by our mechanics
TOTAL NUMBER OF EXPERT Lexus MECHANICS
1100+
experts on our platform

Recent articles & questions

All About All-Season Tires
Depending Depending on the climate you live in, season changes can be slight or they can be extreme. Some areas of the United States have very temperate climates with a rainy season and a hot season. Others have a short,...
P0321 OBD-II Trouble Code: Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0321 P0321 code definition Ignition/Distributor Engine Speed Input Circuit Range/Performance What the P0321 code means P0321 is an OBD-II generic code that the engine control module (ECM) detected the engine speed input sensor circuit out of range or its performance...
How to Bleed a Clutch
A clutch master cylinder contains a reservoir with brake fluid. It is connected to the clutch slave cylinder through hoses. When you...

Car is overheating

Hi there. From the description you have provided, there are several things to address concerning your vehicle overheating. Given the location described, it could be, the bypass hose that blew (https://www.yourmechanic.com/services/radiator-hose-replacement). This could be the result of hose degradation, which...

What's the thing call that connects your wheel to the putter tie ride and to the upper and lower ball joints

The part you are referring to is called the spindle. It connects the upper and lower control arms and connecting to the steering tie rod end. The brake caliper attaches to it also.

I have coolant leaking from the side of my reservoir tank when I try to fill , as well as steam.

To estimate a variety of leaks please request a leak inspection/diagnostic (https://www.yourmechanic.com/services/oil-fluid-leak-inspection). If coolant is leaking from the reservoir, the reservoir may be cracked; if so, YourMechanic can replace the reservoir (https://www.yourmechanic.com/services/coolant-reservoir-replacement). If the leak from the bottom of the...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com