Car

Ask a Mechanic Online and Get Answers to Your Car Questions

Ask an Expert,
Get an Answer ASAP!

Car
This answer was rated:

Started smelling gas and noticed a black/tarry substance…

Started smelling gas and...

Started smelling gas and noticed a black/tarry substance near the right rear tire. substance hardens after it cools on the garage floor.

Mechanic's Assistant: Has the vehicle turned into a gas hog? And how does it start -- same as usual?

Starts fine - not noticing extreme fuel usage.The leak is greater when I've ran it hard, nothing when an easy drive - just the gas smell.

Mechanic's Assistant: What is the make/model/year of your car?

2003 Maserati Spyder GT 6-speed manual tranny

Mechanic's Assistant: Are you fixing your spider GT yourself? What have you tried so far?

I haven't tried anything yet. trying to determine the problem. Jacked it up and removed the wheels to see if it was something at the trans/differential,but limited visual space. something leaking from behind the heat shield

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

I know there was a recall for this year/model for gas leaks, but info I got was it was in the engine compartment.

Show More
Show Less
Ask Your Own Car Question
Answered in 9 hours by:
1/20/2018
Eric
Eric, Automotive Repair Shop Manager
Category: Car
Satisfied Customers: 33,457
Experience: Automotive Repair Shop Manager, Technician/JA Mentor
Verified

HI,

I am sorry that you have not been helped yet. I just came online and saw your question

Which heatshield exactly is the substance leaking from behind?

Does it have a fuel/charcoal smell to it = this may be from the charcoal vapor canister

Ask Your Own Car Question
Customer reply replied 1 month ago
The shield is in front of the right rear wheel, above the suspension member. I'm not sure if it has a vapor canister.
Customer reply replied 1 month ago
If it is a charcoal filter, would the substance that leaks out be almost like a tar? It does smell like fuel and it is so black it almost stains my finger when I touched it.

HI,

It is attached to the fuel tank on the passenger side and is roughly just in front of the rear right wheel well area

The canister has charcoal filters inside and if it fills with fuel from either having absorbed all it could over the years or from over filling the tank and having raw fuel go down the fuel filler vapor tube directly into the canister, it can leak a tarry substance which is from the fuel melting the charcoal filters.

Ask Your Own Car Question
Customer reply replied 1 month ago
Do you know if it's a costly repair? Things are so tight under there, not sure how to access it.

The only other cause would be a fuel leak from either a line, connection, or around the fuel pump seal that is getting on rubberized undercoating and melting it and causing it to drip. That would also cause the tarry substance with fuel smell.

In either case you are going to have to drop alot of the suspension, the rear exhaust and heat shields to inspect and then repair.

As to costs, if it is the vapor canister, you are looking at around $550 for the part and around 4 hours labor, about $400 or so. Total around $950

If it is either a fuel line, fuel pump seal or connection, you are looking at from $80 for a seal, $200 for line, and around 5 hours labor to drop the tank, about $500. Total $580 to $780

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required rating

Please remember to rate service using the separate pop up rating page. Thank you

Eric
Eric, Automotive Repair Shop Manager
Category: Car
Satisfied Customers: 33,457
Experience: Automotive Repair Shop Manager, Technician/JA Mentor
Verified
Eric and 87 other Car Specialists are ready to help you
Ask your own question now
Customer reply replied 1 month ago
Okay, thank you.
Was this answer helpful?
Ask Eric Your Own Question
Eric
Eric
Eric, Automotive Repair Shop Manager
Category: Car
Satisfied Customers: 33,457
33,457 Satisfied Customers
Experience: Automotive Repair Shop Manager, Technician/JA Mentor

Eric is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time!

Paul MCorpus Christi, TX

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Technician

1,243 satisfied customers

16 years of experience

Ted G.

Ted G.

ASE Certified Technician

1,724 satisfied customers

20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness

George H.

George H.

ASE Certified Technician

1,537 satisfied customers

ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist

GM Tech (Cam)

GM Tech (Cam)

Auto Service Tech

669 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Amedee

Amedee

Former ASE Master Tech

2,520 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Jerry

Jerry

Master Mechanic

2,181 satisfied customers

ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager

Richard

Richard

ASE Certified Technician

1,000 satisfied customers

12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes

< Previous | Next >

Related Car Questions
My 2003( automatic trans) Sante Fe has 207,000 miles and was
My 2003( automatic trans) Sante Fe has 207,000 miles and was going strong. the other morning I left the house and as it … read more
HDGENE
HDGENE
Master Technician/Lead Technician
Associate Degree
2,835 satisfied customers
Loss of power when accelerating. Just started happening.
Loss of power when accelerating. Just started happening. … read more
Todd M
Todd M
Owner
ASE Certification
1,592 satisfied customers
How clean do the spark plug wells need to be when changing?
Second opinion] How clean do the spark plug wells need to be when changing? I found some plugs were oily and now that they are out I see gunk at the bottom. This is a 2004 Hyundai Santa Fe. Concerned … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,051 satisfied customers
Safari awd won't engage any gear only parktrans just stopped
Safari awd won't engage any gear only parktrans just stopped no gears? … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Airbag light is on truck is a 1995 ford f150. I have not
yes i have not tried to do anything yet looking for answers to help … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
I own a 2001 Dodge Plymouth and was driving in the snow last
I own a 2001 Dodge Plymouth and was driving in the snow last night and needed to turn left at a light and as I started to slow down at the light because the light went red the car began to slid to the… read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
I have an Onan Emerald Plus generator that is completely
I have an Onan Emerald Plus generator that is completely caked in grease. It used to be mounted in an RV but was removed prior to my owning it.What is the safest process that I can use to degrease it?… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
My 2001 ram 2500 v10 slips at speed slightly when not
My 2001 ram 2500 v10 slips at speed slightly when not accelerating. It also slips upon first takeoff when it's been sitting for a while. I have not noticed any issues in reverse. … read more
Wolfgang
Wolfgang
3 satisfied customers
2004 expedition with 5.4 L. When it rains cylinders misfire.
2004 expedition with 5.4 L. When it rains cylinders misfire. AutoZone said it was number three and number four. What can cause that? I was on a trip this weekend and every time it would rain it would … read more
roy
roy
Associate Degree
3 satisfied customers
Have ve ss Ute 2008 when selecting reverse makes a noise
Have ve ss Ute 2008 when selecting reverse makes a noise checked the rubber couplings look ok the noise has steadily got worse over the last year… read more
Gary
Gary
Senior Technician
Vocational, Technical or Trade School
77 satisfied customers
Acura No dome lights. Think it might be a fuse but cannot
Acura No dome lights . Think it might be a fuse but cannot locate which one it is . Nothing working map lights or any interior lights … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
Fails to starf first time with key takes several attempts
Fails to starf first time with key takes several attempts befor starter motor kickes over … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,051 satisfied customers
There is a recall on my 2001 daewoo leganza I do not know
there is a recall on my 2001 daewoo leganza I do not know where to take it for service I live in Southern California San Fernando Valley … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
Were is the fule shutoff on a 03 jeep liberty. New pump i
New pump i backed over a stump and it died and it wont start back but can hear the pump running … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,659 satisfied customers
I have a lincoln ls v8 2000 and broke the right secundary
Hi I have a lincoln ls v8 2000 and broke the right secundary timing chain and the sprocket jump teeht. How can I put on time again. Thanks… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,659 satisfied customers
Car died after a few gallons of gas. had codes
car died after a few gallons of gas. had codes p0014-Camshaft timing overadvanced, p0017-crankshaft/camshaft correlation, & p0365 Camshaft Position sensor codes set and p2119 throttle actuator control… read more
Dan
Dan
Dealership Technician
Associate Degree
1,867 satisfied customers
I have a 2014 Hyundai Tucson and when I turn on my car the
I have a 2014 Hyundai Tucson and when I turn on my car the ESC indicator light and an indicator that illustrates the car sitting on a decline in red constantly stay on. Also when I put my break on the… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
4,659 satisfied customers
My battery died and went to jump start it and cluster
My battery died and went to jump start it and cluster doesn't come on … read more
rpmdiag
rpmdiag
High school
7,346 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x