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Posted by 1bdpone (Member # 6708) on :
 
My 93 GT 5spd is having ignition/driving problems. For the first few blocks of driving the car doesn't want to rev much past 3000rpm and it is hesitating. After a few blocks or so it still has a little hesitation, but will rev to red line. Also, it has some pinging in all gears under load. Here's a list of things that have been changed. Injectors cleaned and the following new parts were put on in the past week: alternator, cap/rotor, 9mm wires, BAR sensor and ignition module. Timing is set at 10, but I have also tried 8 and 12, but it still pings. I am going to pick up a distributor today. Any suggestions......
 
Posted by two-gun kid (Member # 5891) on :
 
try the plugs also is it throwing any codes?
 
Posted by 1bdpone (Member # 6708) on :
 
The plugs only have about 2k on them and I pulled them yesterday and they look like new. No codes.
 
Posted by blind (Member # 3052) on :
 
make sure the gap on the plugs is set right, .035

when was the fuel filter last changed? I'd change it.

how is the idle, is it surging?
 
Posted by 1bdpone (Member # 6708) on :
 
I will double check the plug gap. Fuel filter was changed about 2 months ago. It idles perfect with no surging. I've also cleaned the IAC and throttle body. When driving aroung 25-30 mph it hesitates or feels like I'm very littly pressing down on the gas pedal and then releasing. I am also running 91 octane gas. I'm going crazy trying to track down what is causing this.
 
Posted by 1bdpone (Member # 6708) on :
 
I thought .054 was correct gap for stock motor??
 
Posted by silverLX (Member # 3207) on :
 
quote:
Originally posted by 1bdpone:
I thought .054 was correct gap for stock motor??
It is. I would replace the fuel filter and pull codes.

[ May 19, 2006, 11:53 AM: Message edited by: silverLX ]
 
Posted by forced331 (Member # 1270) on :
 
You might have a bad mass air meter. Try removing the brain and clean the sensor with brake cleaner and compressed air.
 
Posted by red GT black rallyes (Member # 4495) on :
 
did it start the pinging after u installed the parts that u listed in the first message or is that why u changed them???
 
Posted by 1bdpone (Member # 6708) on :
 
I will look at the mass air meter tonight. The pinging started before I replaced any parts. For the past two weeks I've been trying/changing things one at a time to see if there is any difference. The pinging just won't go away.
 
Posted by CobramanPhil (Member # 2170) on :
 
How old are the oxygen sensors?
 
Posted by 1bdpone (Member # 6708) on :
 
I'm not sure how old they are. I've only owned the car for about six months. I know it did pass smog without a problem six months ago.
 
Posted by 1bdpone (Member # 6708) on :
 
Thanks for all the input on my stumbling Mustang. I did not get around to checking everything out this weekend, but the problem has gone away!! The pinging has stopped and the hesitation is pretty much gone. [Big Grin]
 




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