Question about 1993 Pontiac Grand Am
After ~8 miles in summer driven hard sputters, runs does this 3-4 times & dies. Won't start till several hours later when cool.
What's been done:
New fuel pump (1 yr old), brand new borg warner crank shaft position sensor, new borg warner ICM (and retested), new ignition coils (seperate problem).
Service engin light is on most of the time buit think this is just O2 sensor(s), computer is dumb, never turns anything up on diags.
Ran with fuel pressure gage attached through problem, pressure 47 - 60 pounds during acceleration then when sputtering jumping wildly between 20 - 50 lbs. Engine temps are normal, fan & cooling system OK, AC running OK
Any next best guess/insight welcome - I also have an 87 Jeep 4L that does the SAME THING:(
Check the airflow meter or your fuel pressure is low - also can be caused but the oil make sure your using the right oil and change it once a year
Posted on Sep 07, 2008
Check the airflow meter sensoe,could be distributor also if the fuel pressure is going down on acleration could be a blockage in the injectors on injector might be getting to much fuel or the airflow meteris playing up thats the best bet
Posted on Sep 02, 2008
Start checking air intake and air filter,
The ECU (car computer module) must be connected to a code reader and scanned, with engine light on, probably it is a computer problem.
Posted on Sep 02, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 15, 2010 | 1993 Cadillac DeVille
Jun 20, 2010 | 1994 Toyota 4Runner
Apr 06, 2010 | 1993 Jeep Grand Cherokee
Jan 12, 2010 | 1994 Pontiac Bonneville
Nov 17, 2009 | 1993 Dodge Dakota
Mar 21, 2009 | 1997 Jeep Grand Cherokee
Mar 07, 2009 | 1991 Honda Civic
Mar 07, 2009 | 2000 Honda Accord
Dec 08, 2008 | 1988 Volkswagen Cabriolet
Aug 03, 2008 | 1999 Nissan Quest
Jul 05, 2014 | 1993 Pontiac Grand Am
243 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: