Go Back   Corvette Forum > C4 Corvettes, 1984 - 1996 > C4 General Discussion
Sign in using an external account
Register Forgot Password?
Register Search Today's Posts Mark Forums Read FAQ Vendor Directory
Search
C4 General Discussion
General C4 Corvette Discussion not covered in Tech

Welcome to Corvetteforum.com!
Welcome to Corvetteforum.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Corvetteforum.com today!


Corvette Store
 
 
C7 Parts & Accessories
C6 Parts & Accessories
C5 Parts & Accessories
C4 Parts & Accessories
C3 Parts & Accessories
C2 Parts & Accessories
C1 Parts & Accessories
Wheels & Tires
Sponsored Ads
 
 
Vendor Directory
  
Reply
 
 
 
 
Thread Tools Search this Thread
Old 08-03-2006, 04:09 PM   #1
pr1mu5
CF Senior Member
 
pr1mu5's Avatar
 
Member Since: May 2006
Location: Boynton Beach FL
Default Tire going flat intermittently

On my 94 Coupe, very odd... my right rear passenger side tire is going flat. Sometimes. I parked it at night, and the next morning, it was completely flat. I filled it up with air, and it was fine for a couple days. No loss of pressure. Then all of a sudden, overnight, it was completely flat again. The shop checked the tire, couldn't find any leaks (sprayed with water, looking for bubbles...).

Could it be a 'positional' thing, that depending where the tire is left overnight touching the ground, it is opening a seam somewhere and losing air?

There is plenty of tread left, so I don't really want to buy a new tire. I imagine putting in a can of stop-leak is a bad idea, so what else can I do?
pr1mu5 is offline   Reply With Quote
Old 08-03-2006, 04:14 PM   #2
94ZR1
CF Senior Member
St. Jude Donor '06
 
94ZR1's Avatar
 
Member Since: Aug 2005
Location: No Opti Here Tn
Default

Quote:
Originally Posted by pr1mu5
On my 94 Coupe, very odd... my right rear passenger side tire is going flat. Sometimes. I parked it at night, and the next morning, it was completely flat. I filled it up with air, and it was fine for a couple days. No loss of pressure. Then all of a sudden, overnight, it was completely flat again. The shop checked the tire, couldn't find any leaks (sprayed with water, looking for bubbles...).

Could it be a 'positional' thing, that depending where the tire is left overnight touching the ground, it is opening a seam somewhere and losing air?

There is plenty of tread left, so I don't really want to buy a new tire. I imagine putting in a can of stop-leak is a bad idea, so what else can I do?
I think you should post it on the forum for some useless responses


You have two options
1 Buy new tire
2 Keep filling it up with air
94ZR1 is offline   Reply With Quote
Old 08-03-2006, 04:32 PM   #3
SJW
CF Senior Member
 
Member Since: May 2005
Location: '94 Ragtop 6-speed & LT4 Coupe, Central Maryland
Default

Quote:
Originally Posted by pr1mu5
On my 94 Coupe, very odd... my right rear passenger side tire is going flat. Sometimes. I parked it at night, and the next morning, it was completely flat. I filled it up with air, and it was fine for a couple days. No loss of pressure. Then all of a sudden, overnight, it was completely flat again. The shop checked the tire, couldn't find any leaks (sprayed with water, looking for bubbles...).

Could it be a 'positional' thing, that depending where the tire is left overnight touching the ground, it is opening a seam somewhere and losing air?

There is plenty of tread left, so I don't really want to buy a new tire. I imagine putting in a can of stop-leak is a bad idea, so what else can I do?
Check the schraeder valve for leakage. Inspect the tire carefully for any foreign objects embedded in the tread. It could also be leaking at the bead, but possibly only when the car is parked with the tire/wheel in a certain position (sidewall flexure contributing to the intermittent leak). Check the valve stem where it seats in the wheel.

Fill a spray bottle with soapy water, and spray the tire down daily, looking for bubbles. Sooner or later, you'll probably be able to spot the leak if you're persistent enough.

Be well,

SJW

Last edited by SJW; 08-03-2006 at 04:34 PM.
SJW is online now   Reply With Quote
Old 08-03-2006, 04:45 PM   #4
pr1mu5
CF Senior Member
 
pr1mu5's Avatar
 
Member Since: May 2006
Location: Boynton Beach FL
Default

Does my car have one of those low-tire pressure warning systems? I'm wondering if that thing could have somehow 'sprung' a leak? (No idea how those work, anyhow).
pr1mu5 is offline   Reply With Quote
Old 08-03-2006, 09:10 PM   #5
George Dickel
CF Senior Member
 
George Dickel's Avatar
 
Member Since: Aug 2001
Location: Clarksville Tennessee
Default

With a leak that slow pouring water over it may not show bubbles. If you have a kiddie wading pool pull the tire and wheel off and fill it up to about 50 psi. Put it into the pool and submerge it and then look for air bubbles. Just don't get to wild on the air pressure.
George Dickel is offline   Reply With Quote
Old 08-03-2006, 09:25 PM   #6
aminnich
CF Senior Member
 
aminnich's Avatar
 
Member Since: Jan 2006
Location: Woodstock Georgia
Default

Quote:
Originally Posted by pr1mu5
Does my car have one of those low-tire pressure warning systems? I'm wondering if that thing could have somehow 'sprung' a leak? (No idea how those work, anyhow).
Check your RPO codes to see if you have that option, but it doesn't sound like you do. Sensors are mounted inside the rim and transmit data to reciever in the cockpit. In any event they could never cause a leak. I am with SJW, schrader valves can act weird (ancient technology) and since they cost about .10 I would replace it. 94Z1 said you had 2 choices, actually there are many:

new valve
new valve stem and valve
new tire
new wheel
new tire shop
all of the above, or
none of the above, and
keep airing the tire
sell car and let next guy worry about it
park it and forget it.

I am thinking #1 or #2 is most likely.
__________________
2004 Vert, Engine by Vengeance Racing
378rwhp, 361ftlb torque amd a bit more.
aminnich is offline   Reply With Quote
Old 08-03-2006, 09:43 PM   #7
AORoads
CF Senior Member
 
AORoads's Avatar
 
Member Since: Jun 2005
Location: Northern, VA
Default

You don't state how old is the tire; that could be an issue if it's actually seeping air through the sidewall or tread area.

The bead leak is very possible, too, as well as the valve and stem. And it may not show so well as said by George.

Question: when the tire shop had it off and looking, did they deflate it, scrub down around the rim contact area with the tire and then refill with air?

Question: can you recall hitting any potholes, bumps, curbs, railroad tracks recently that might've caused this? It doesn't always take a bone-jarring hit; just the right way at the right speed can cause a slight, internal damage which could then lead to a leak. So, think back.
AORoads is offline   Reply With Quote
Old 08-03-2006, 10:12 PM   #8
rickneworleansla
CF Senior Member
 
rickneworleansla's Avatar
 
Member Since: Aug 2004
Location: Metairie Louisiana
Send a message via AIM to rickneworleansla
Default

I had a similar problem about a year ago. I had four new tires and one of them had a very slow intermittent leak. I went back to the tire shop several times and they could not find the leak. They tried to blame it on the rim. Finally I was able to persuade them to replace the tire for a new one. Problem solved. Hope that helps.
__________________
95-Lt1-auto-Polo-Conv, 125hp ZEX N2O dry, LE Cam 226/234 565/565 109LSA, Comp Pro Mag 1.6rr, Patriot Xtreme Springs, PCMFORLESS tune, K&N, AO Ram Air, 52mm TB, EM LT Headers, No Muffler, X-pipe, Meziere HD EWP, Vigil 2800 Conv, TransGo Shift Kit, Pro-Built 4L60E Trans., 24lb SVO's, MSD Coil & 8.5mm wires, NGK TR6 plugs, B&M TransCooler, Dewitt Radiator, 160 therm, TB AirFoil, 3.07 Rear Axle, LT4 KM, S&D Rotors, SS BrakeLines, Hawk HPS Pads, ZR1 rims 275/315. 1967-Firebird-conv-2spd-326ci
rickneworleansla is offline   Reply With Quote
Old 08-04-2006, 08:51 AM   #9
pr1mu5
CF Senior Member
 
pr1mu5's Avatar
 
Member Since: May 2006
Location: Boynton Beach FL
Default

Quote:
Originally Posted by LT4CompYell
You don't state how old is the tire; that could be an issue if it's actually seeping air through the sidewall or tread area.

Question: can you recall hitting any potholes, bumps, curbs, railroad tracks recently that might've caused this? It doesn't always take a bone-jarring hit; just the right way at the right speed can cause a slight, internal damage which could then lead to a leak. So, think back.
The tire is questionable, it came with the car when I bought it a month or so ago, so no idea how old it is. I'd wager there is 30-40% tread left on the tire.

And yes, I can recall totally smashing over a black speed bump in a dark car garage... full speed. About three weeks ago. I was really pissed... who the frick installs black speed bumps in a dark enclosed parking garage? Jerks.

I like the idea of taking the tire off and putting it in a kiddie pool, I might try that this weekend... otherwise, are you guys particular on tire shops, or just go anywhere? I wonder if BJ's WholeSale club carries my tire size...
pr1mu5 is offline   Reply With Quote
Old 08-04-2006, 08:57 AM   #10
corvette-pilot
CF Senior Member
 
corvette-pilot's Avatar
 
Member Since: Sep 2002
Location: Hanger 18 Taxachusetts
Default

Do you park it outside? Maybe it's the neighborhood kids messing with you?
corvette-pilot is offline   Reply With Quote
Old 08-04-2006, 08:59 AM   #11
BADDUCK
CF Senior Member
 
BADDUCK's Avatar
 
Member Since: Jun 2006
Location: One day you're a Comet...the next day you're dust... Arkansas
Default

Bet that tire has a nail in it or the valve stem is bad. You can check it yourself using a thick solution of water and DW detergent. You need to take it off the car. If not, take it too a full servce neighborhood service station that sells tires and have them check it.
BADDUCK is offline   Reply With Quote
Old 08-04-2006, 08:59 AM
 
Go Back   Corvette Forum > C4 Corvettes, 1984 - 1996 > C4 General Discussion
Reload this Page Tire going flat intermittently
 
 
 
Reply

Tags
flat, intermitently, intermittently, leak, leaking, morning, passener, purple, rear, stop, tire, tires


Thread Tools Search this Thread
Search this Thread:

Click for Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -4. The time now is 12:30 PM.


Emails & Password Backup