Notices
C4 General Discussion General C4 Corvette Discussion not covered in Tech

Stalling

 
Old 02-09-2019, 02:47 PM
  #1  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

I overfilled the gas tank a week ago. After driving the car for 10 miles it stalled. I opened the gas cap and pressure was released. After 15 minutes I drove it home. Today I took it out and after 15 minutes it stalled. I opened the gas cap and the same thing happened. After 15 minutes it started and I drove it home. New the service soon light is on. It has 41,000 miles on it. Any thoughts on gas cap or other causes?
Ronnie123 is offline  
Old 02-09-2019, 07:01 PM
  #2  
Joe K
CF Senior Member
Support Corvetteforum!
 
Joe K's Avatar
 
Member Since: Jun 2018
Location: Louisville, Ky
Posts: 197
Thanked 17 Times in 13 Posts
Default

Did you notice pressure release before you had the problem? When you filled the tank before? What year? OBD2 will set a code for fuel cap. I'd replace the cap and clear the codes. Just pull the ecm fuse for a couple of minutes. You could also let autozone pull the codes and go from there.

Hth,

Joe K
Joe K is offline  
Old 02-09-2019, 10:48 PM
  #3  
drcook
CF Senior Member
 
drcook's Avatar
 
Member Since: Apr 2016
Location: N.E. Ohio OH
Posts: 1,939
Thanked 247 Times in 222 Posts
Default

According to one of his earlier posts, it is a 1993, so OBD I.
drcook is offline  
Old 02-10-2019, 12:05 AM
  #4  
aklim
CF Senior Member
 
aklim's Avatar
 
Member Since: Jul 2004
Location: Hartford WI
Posts: 15,316
Thanked 751 Times in 737 Posts
Default

Originally Posted by Ronnie123 View Post
I overfilled the gas tank a week ago. After driving the car for 10 miles it stalled. I opened the gas cap and pressure was released. After 15 minutes I drove it home. Today I took it out and after 15 minutes it stalled. I opened the gas cap and the same thing happened. After 15 minutes it started and I drove it home. New the service soon light is on. It has 41,000 miles on it. Any thoughts on gas cap or other causes?
How did you overfill it? Pump clicks off and there is a lot more to go. A gallon, maybe 2? Buy yourself a scanner. One that can read real time data and not a cheap code reader which is a paperclip with a fancy box around it. Check fuel pressure and spark quality.
aklim is online now  
Old 02-10-2019, 10:31 AM
  #5  
Cruisinfanatic
. 1985 Original Owner .
Support Corvetteforum!
 
Cruisinfanatic's Avatar
 
Member Since: Jul 2004
Location: Clifton Pk, NY Clearwater, FL
Posts: 4,118
Thanked 170 Times in 141 Posts
Default

Originally Posted by Ronnie123 View Post
I overfilled the gas tank a week ago. After driving the car for 10 miles it stalled. I opened the gas cap and pressure was released. After 15 minutes I drove it home. Today I took it out and after 15 minutes it stalled. I opened the gas cap and the same thing happened. After 15 minutes it started and I drove it home. New the service soon light is on. It has 41,000 miles on it. Any thoughts on gas cap or other causes?
How do you over fill a gas tank?
Cruisinfanatic is offline  
Old 02-10-2019, 11:46 AM
  #6  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

From what have heard from the C4 forum is that if try to squeeze as much as you can in it can cause liquid to get into the charcoal filter causing pressure to buildup and the fuel pump cannot overcome the pressure.
Ronnie123 is offline  
Old 02-10-2019, 12:25 PM
  #7  
Cruisinfanatic
. 1985 Original Owner .
Support Corvetteforum!
 
Cruisinfanatic's Avatar
 
Member Since: Jul 2004
Location: Clifton Pk, NY Clearwater, FL
Posts: 4,118
Thanked 170 Times in 141 Posts
Default

Originally Posted by Ronnie123 View Post
From what have heard from the C4 forum is that if try to squeeze as much as you can in it can cause liquid to get into the charcoal filter causing pressure to buildup and the fuel pump cannot overcome the pressure.
Ridiculous!
Cruisinfanatic is offline  
Old 02-10-2019, 12:49 PM
  #8  
Tom400CFI
CF Senior Member
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 13,808
Thanked 586 Times in 520 Posts
Default

Originally Posted by Ronnie123 View Post
From what have heard from the C4 forum is that if try to squeeze as much as you can in it can cause liquid to get into the charcoal filter
This part is true -of most any car. It CAN happen. But...


Originally Posted by Ronnie123 View Post
causing pressure to buildup and the fuel pump cannot overcome the pressure.
This won't happen. No way. What could happen is the the engine could ingest fuel or fumes from the charcol canister causing and over rich condition. It's unlikely that this would cause it to stall and not run.

OP why haven't you pulled the code to see what the car is trying to tell you the problem is? That would be "step 1", here.
Tom400CFI is offline  
Old 02-10-2019, 01:11 PM
  #9  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

Which code reader would you recommend? I put a new gas cap on it and ses light went off. Drove it for 30 minutes today and no issues. It has 41,000 miles on it. It is a 1993 LT1.
Ronnie123 is offline  
Old 02-10-2019, 01:29 PM
  #10  
Tom400CFI
CF Senior Member
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 13,808
Thanked 586 Times in 520 Posts
Default

I'd recommend none. I'd use a paper clip or jumper wire to jump the terminals in the ALDl connector under the dash, then count the flashes to get your codes. See this 'how to', HERE
Tom400CFI is offline  
Old 02-10-2019, 03:02 PM
  #11  
aklim
CF Senior Member
 
aklim's Avatar
 
Member Since: Jul 2004
Location: Hartford WI
Posts: 15,316
Thanked 751 Times in 737 Posts
Default

Originally Posted by Ronnie123 View Post
Which code reader would you recommend? I put a new gas cap on it and ses light went off. Drove it for 30 minutes today and no issues. It has 41,000 miles on it. It is a 1993 LT1.
Cheap paper clip or a real scanner. Real scanning will give data which the code scanning will not. That comes at a price but saves aggravation. No free lunch.
aklim is online now  
Old 02-10-2019, 03:30 PM
  #12  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

Started 10 minutes ago SES back on. Idling at 1500 rpms.

Taking it to a Corvette specialist unless I get a better suggestion.

Frustrating as it was my brother in laws since new. It is in near showroom condition but 26 years old.

Originally Posted by aklim View Post
Cheap paper clip or a real scanner. Real scanning will give data which the code scanning will not. That comes at a price but saves aggravation. No free lunch.
Ronnie123 is offline  
Old 02-10-2019, 03:38 PM
  #13  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

Is there some sort of pressure relief valve on the EGR or other emission system that may cause it. I would love to learn how to perform my own repairs.

Have not worked on cars since I restored a 1972 Trans Am in 1982.
Ronnie123 is offline  
Old 02-10-2019, 03:58 PM
  #14  
JBPC4
CF Senior Member
 
JBPC4's Avatar
 
Member Since: May 2018
Posts: 224
Thanks: 0
Thanked 36 Times in 29 Posts
Default

Here is another link for reading the codes with a jumper wire (paper clip). On your 93 it will actually display the numerical trouble code directly, no need to count flashing ses lights. Check the code before making any guesses.


https://tech.corvettecentral.com/201...trouble-codes/
JBPC4 is offline  
Old 02-10-2019, 04:01 PM
  #15  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

The frustrating part is we driven the car for a 100 miles at a time over the 7 months we have owned it. This started 15 minutes after fueling it. Can the fuel pump operate effectively and then not and then operate effectively again?
Ronnie123 is offline  
Old 02-10-2019, 04:21 PM
  #16  
aklim
CF Senior Member
 
aklim's Avatar
 
Member Since: Jul 2004
Location: Hartford WI
Posts: 15,316
Thanked 751 Times in 737 Posts
Default

Originally Posted by Ronnie123 View Post
The frustrating part is we driven the car for a 100 miles at a time over the 7 months we have owned it. This started 15 minutes after fueling it. Can the fuel pump operate effectively and then not and then operate effectively again?
Can it? Sure. Is it the issue? Without a pressure gauge on it or an idiot light on the pump, it is hard to tell. I need to see if the start up pressure is good, will it hold pressure and also pressure at WOT. Most important is when you have the problem is happening, what is the pump doing?
aklim is online now  
Old 02-10-2019, 04:28 PM
  #17  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

There is no issue on operation at all until 15 minutes of driving. Acceleration is awesome.


it won this award too. We would like to keep it the family as my brother in law passed away last June.

If the diagnosis is daunting would you recommend I take it to a professional?
Ronnie123 is offline  
Old 02-10-2019, 04:42 PM
  #18  
aklim
CF Senior Member
 
aklim's Avatar
 
Member Since: Jul 2004
Location: Hartford WI
Posts: 15,316
Thanked 751 Times in 737 Posts
Default

What is happening at 15 minutes? Fuel pump not working? Oump not getting power? Spark from opti? ECM? If it dies and can restart, rap the ECM and see what happens. It might be the cold solder pieces of solder. It could be the opti failure when hot. It may be a Oump dying when hot, it might be the power to the pump.
aklim is online now  
Old 02-10-2019, 04:45 PM
  #19  
Ronnie123
Junior Member
Thread Starter
 
Member Since: Jun 2018
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Default Stalling

After 15 minutes of driving it stalls
If you try to start it tries and stalls immediately. Wait 20 minutes and it starts
Ronnie123 is offline  
Old 02-10-2019, 04:47 PM
  #20  
aklim
CF Senior Member
 
aklim's Avatar
 
Member Since: Jul 2004
Location: Hartford WI
Posts: 15,316
Thanked 751 Times in 737 Posts
Default

Originally Posted by Ronnie123 View Post
After 15 minutes of driving it stalls
If you try to start it tries and stalls immediately. Wait 20 minutes and it starts
Perfect. That allows me to try rapping the ECM to see if it improves and check spark from opti or fuel pressure
aklim is online now  

Thread Tools
Search this Thread
Quick Reply: Stalling


Sponsored Ads
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: