Gas Smell in cabin When Heat/AC is on - Insight Central: Honda Insight Forum
 
Go Back   Insight Central: Honda Insight Forum > 1st Generation Honda Insight Forum > Problems and Troubleshooting

Insightcentral.net is the premier Honda Insight Forum on the internet. Registered Users do not see the above ads.

» Auto Insurance
» Featured Product
» Wheel & Tire Center

Reply
 
LinkBack Thread Tools
Old 11-06-2012, 05:21 PM   #1 (permalink)
Junior Member
 
Join Date: Nov 2012
Location: NY
Posts: 5
Default Gas Smell in cabin When Heat/AC is on

Hello everyone,
I bought my 2002 Insight 2 years ago with 89k miles on it, she is now up to 123000. Over the years i have used your forum to solve problems that have occurred. This answer however I could not find after hours of searching.
When I put the heat/AC on (doesn't matter which) there is a smell of gas in my cabin. Not so much when i am driving at high speeds, or even at 30 for that matter. It just happens when I am stopped or crawling in traffic. All the threads I saw that discussed this pointed to the gas lines on the passenger side of the firewall being rusted thru. In my insight this is not the case. I removed the clip that holds the fuel line and moved the rubber grommet behind which is where it is notorious for rotting out, and it is in good shape. for good measure i coated them with some por15 to keep them from rusting out. After looking at images of other peoples' fuel lines at this particular spot, I noticed they all had 2 lines coming up thru that rubber grommet, I only have 1... I dont know if that is relevant or not.
While searching in my engine bay for the gas leak i noticed that the rear passenger corner of the block is leaking oil fairly heavily (I will track down the source of this oil this weekend), maybe I am just smelling that oil which is being heated up on the block? but I am fairly certain it is fuel and it is not coming from the notorious spot on the passenger side firewall.
If anyone has any ideas please let me know what you think and i will check it out and let you know what i find asap.
Thanks!
-matt
danks4 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-06-2012, 05:39 PM   #2 (permalink)
Lifetime Member
 
freezin4's Avatar
 
Join Date: Oct 2008
Location: MD
Posts: 1,287
Default

When I first started reading your thread, I was convinced it was the usual fuel line rust through issue. But you may have ruled that out for now. (Although I'm unsure why you only have one line. Maybe PO have fixed the issue by rerouting one of the lines?)

So, my second thought is the fuel overfill issue: when we go past the cutoff click of the fueling nozzle, (i.e. overfill the tank), some fuel runs down the vent tube. This smells up the car for a while. I no longer have this issue since I started to finish fueling at the first click every time. I can't remember how the HVAC system operation or vehicle speed affected the smell.

Could this be your issue? Do you try to squeeze in that extra 11th gallon of fuel into the tank?
__________________
Insight Shirts are available: http://www.insightcentral.net/forums...olor-less.html
Silver 2001 Insight 5spd - #0160 *Joined the Stable of a Fellow Insighter*: 275+K miles
(Had some bruises, needed some stuff...but I still loved it.)


Citrus w/ A/C 112K miles. It's no DogBite, but it's the Cat's Meow!

Citrus w/ A/C - #2083
270K miles
(Still needs stuff...but now
FOR SALE
freezin4 is offline   Reply With Quote Quick reply to this message
Old 11-06-2012, 06:05 PM   #3 (permalink)
Lifetime Member
 
uhtrinity's Avatar
 
Join Date: May 2007
Location: Pocatello, ID
Posts: 1,377
Default

A week ago my son and myself smelled gas in the cabin through the heater vents. Turned out I had a small fuel leak at the top of one of the injectors due to a nicked O-ring. I would do a complete search of the whole fuel loop for leaks.
__________________
Mark

2000 DIY Garrett GT12 Turboed Silver Insight, #5550
Pioneer P3900MP CD/MP3 4 X Polk Audio 6.5", Stealth Box
Mima #47, BCM Gauge, Ford Hybrid Escaped™ custom 150v 11AH battery pack w. 20% current mod, Matiz rear springs & Monroe shocks, 25mm rear wheel spacers & Blasphemer™ spat cutout, single cone tranny mod
uhtrinity is offline   Reply With Quote Quick reply to this message
Old 11-06-2012, 06:31 PM   #4 (permalink)
Lifetime Member
 
freezin4's Avatar
 
Join Date: Oct 2008
Location: MD
Posts: 1,287
Default

^^^ +1

I had that too on a Prelude and a BMW E30.
__________________
Insight Shirts are available: http://www.insightcentral.net/forums...olor-less.html
Silver 2001 Insight 5spd - #0160 *Joined the Stable of a Fellow Insighter*: 275+K miles
(Had some bruises, needed some stuff...but I still loved it.)


Citrus w/ A/C 112K miles. It's no DogBite, but it's the Cat's Meow!

Citrus w/ A/C - #2083
270K miles
(Still needs stuff...but now
FOR SALE
freezin4 is offline   Reply With Quote Quick reply to this message
Old 11-06-2012, 06:38 PM   #5 (permalink)
Junior Member
 
Join Date: Nov 2012
Location: NY
Posts: 5
Default

Thanks for the quick responses guys, i really appreciate it.

@freezin4: I am currently at half a tank. It may be that I tried to squeeze in a little extra gas in there the other day seeing how I waited to get it for 40 mins. Im in westchester county ny, and with the hurricane coming thru everyone and their mother was out at the gas stations filling up. So I may have gotten a little greedy... But I am wondering like you if the speed of the vehicle would have anything to do with the smell. also I let the car idle parked in my driveway for 15 mins today with the fan/heat off and there was no smell in cab, once i turned fan on, it was right there...
I can take pics of single gas line if that interests you just let me know and ile post them.

@uhtrinity: I took off the plastic cover and checked what i believed to be injectors (Truth be told I work on classic chevys and drive to honda to make up for the 10mpgs that i get with them haha)... If they are on the front of the block kind of on top and go down on angle, i have already looked around them for leaks and they were good. I looked hard at what seemed to me to be the rest of the fuel loop when engine was running, and found nothing.

Thanks guys, if anything else comes to mind let me know. If I discover the source of the smell I will let you know right away!
-matt
danks4 is offline   Reply With Quote Quick reply to this message
Old 11-06-2012, 07:31 PM   #6 (permalink)
Senior Member
 
AbCaRed00's Avatar
 
Join Date: Mar 2011
Location: AB
Posts: 843
Default

I'd lean to a broken seal or such as suggested, but ..If it's not fuel and is perhaps motor oil heating on the block and volatilizing, check your oil sender unit [tucked behind exhaust manifold, look between 2&3 cyl ports] for an oil leak that can travel a fair ways from the source;,, ...another thought on gas smell, [more aromatic than an acrid oil stench] is possibly a loose junction at the part where the cat running down from the head meets the exhaust pipe if the join is leaking. Seen in linked image where springclamps are; there's a donut like gasket/seal there. You may even get a rotten egg smell if the cat's really loaded up with fuel following a cold start as happened once recently only for my vehicle. Best luck.
AbCaRed00 is offline   Reply With Quote Quick reply to this message
Old 11-06-2012, 07:52 PM   #7 (permalink)
Lifetime Member
 
Rainsux's Avatar
 
Join Date: Jan 2010
Location: Albuquerque, NM
Posts: 651
Default

My 2000 5-speed has two lines at the firewall. My 2002 CVT only has one. I don't know if it's the year or the transmission.

Sam
__________________
2000 Citrus
64,000 Miles
Custom Turbocharger System
MIMA #150
Genesis Charger and Discharger
BumbleBee Battery
OBDIIC&C Gauge
Fumoto Valve
New Mexico license plate KERS
Alpine Stereo
Rainsux is offline   Reply With Quote Quick reply to this message
Old 11-07-2012, 10:41 AM   #8 (permalink)
Senior Member
 
Join Date: Feb 2009
Location: NC Illinois
Posts: 684
Default

mine did this-check the purge joint on the firewall. Mine had cracked and vented fumes during purge
__________________
2000 #1007 orig owner
mt/ac,
First insight to twist the camshaft
biododge1 is offline   Reply With Quote Quick reply to this message
Old 11-07-2012, 05:31 PM   #9 (permalink)
Senior Member
 
Join Date: Apr 2009
Location: Phoenix, AZ
Posts: 553
Default

Have you noticed a significant decrease in gas mileage that has accompanied the fuel odor?

I had to replace my fuel pump last year when I developed a crack in one of the plastic connectors on the top of the assembly. I had the same fuel odor and my MPG had dropped 10+ prior to this.
Varak is offline   Reply With Quote Quick reply to this message
Old 11-07-2012, 06:06 PM   #10 (permalink)
Junior Member
 
Join Date: Nov 2012
Location: NY
Posts: 5
Default

good stuff guys, thanks for the ideas.

@biododge1: I searched online, and on the forum for the purge valve, with little luck. Best i can tell it has something to do with lean-burn for the manuals. I may be mistaken tho. I am automatic, do I have one? where on the firewall would i find it if I had one? Also would this throw an evap code?, at the moment i am not throwing any codes.

@Varak: I have have a LMPG of 47. On the way in to work today I set a tripometer and averaged 45.5mpg in 70 miles or so. It has been around this typically in the winters when it gets cold. I will look up the location of the fuel filter and inspect it for issues this weekend.

Thanks again all, I have several things to look for when i pull it in my cousins garage this weekend. If any other possibilities come to mind please let me know so I can inspect, and cross them off the list of possible problems.
danks4 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Tags
gas smell in cabin, gas smell when stopped

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Insight Central: Honda Insight Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 04:34 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

Content Relevant URLs by vBSEO 3.3.2