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1989 s-10 idles fine but misses when driving


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smoke718
New User

Aug 3, 2010, 3:55 PM

Post #1 of 4 (2015 views)
1989 s-10 idles fine but misses when driving Sign In

i have an 1989 4.3 it wont start unless i press the gas pedal down. then once it is started it idles fine but as soon as you put it into gear and try to give it throttle it dies, but if i am lucky enough to get it to go it will run ok for a short period then it will begin to miss and then run smooth for a few miles then miss again but it misses more times than not. i have replaced all the spark components cap,button,wires and plugs but it didnt help.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 3, 2010, 3:58 PM

Post #2 of 4 (2001 views)
Re: 1989 s-10 idles fine but misses when driving Sign In

You might start out by changing the fuel filter and testing the fuel pressure.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



smoke718
New User

Aug 3, 2010, 4:33 PM

Post #3 of 4 (1992 views)
Re: 1989 s-10 idles fine but misses when driving Sign In

have tried both changing the fuel filter and did a pressure test but it is still doing the same.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 3, 2010, 4:34 PM

Post #4 of 4 (1989 views)
Re: 1989 s-10 idles fine but misses when driving Sign In

OK, what was the pressure?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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