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Author
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Topic: help with stumbling car
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1bdpone
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Member # 6708
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posted
 
 
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......
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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two-gun kid2
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Member # 5891
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posted
try the plugs also is it throwing any codes?
Posts: 5566 | From: Hayward,Ca | Registered: Jul 2005
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1bdpone
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Member # 6708
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posted
The plugs only have about 2k on them and I pulled them yesterday and they look like new. No codes.
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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Blind
2.3L
CAFords OG
Member # 3052
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posted
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?
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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1bdpone
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Member # 6708
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posted
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.
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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1bdpone
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Member # 6708
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posted
I thought .054 was correct gap for stock motor??
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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silverLX
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Member # 3207
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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 ]
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88LX hatch 410w
88LX vert gears, exhaust
95GT H/C/I
Posts: 1613 | From: Sonoma County | Registered: Aug 2003
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forced331
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Member # 1270
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posted
You might have a bad mass air meter. Try removing the brain and clean the sensor with brake cleaner and compressed air.
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1992 Ford Mustang LX (Original Owner)"Titanium Frost" 331stroker S-Trim, 5spd
2014 Ford Mustang GT- daily driver
Posts: 1154 | From: Sonoma County | Registered: May 2002
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Stangs R Us
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Member # 4495
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posted
did it start the pinging after u installed the parts that u listed in the first message or is that why u changed them???
Posts: 3100 | From: sacramento | Registered: Aug 2005
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1bdpone
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Member # 6708
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posted
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.
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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CobramanPhil
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Member # 2170
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How old are the oxygen sensors?
Posts: 1016 | From: California, Bay Area | Registered: Dec 2002
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1bdpone
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Member # 6708
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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.
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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1bdpone
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Member # 6708
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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]](biggrin.gif)
Posts: 182 | From: Tri Valley | Registered: Apr 2006
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