The engine runs rich and stalls often at low rpms

1995 CHEVROLET SILVERADO
125,000 MILES
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FLAMAN4726
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The engine is a 1994 5.7L with a 700r4 in my 1995 Siverado. The engine runs okay at times but soon will cut off and has to be restarted. All the transmission will not shift unless i ease up on the gas. Ichecked the diagnostic on hte computer and a Code 15 shows up. Will this affect both or what do I need?
Jan 15, 2012 at 11:42 PM
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HMAC300
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
check to make sure your coolant snesor is getting 5 volts-yellow wire- if it is replace the coolant sensor.
Jan 15, 2012 at 11:57 PM
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FLAMAN4726
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will this affect both the stalling and shifting?
Jan 16, 2012 at 12:19 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
it wont let teh computer read that the engine is warm so you will use more fuel and it could poossibly cause your other problems. youneed to fix that first. also clean your thottle plate and iac valve with choke cleaner on both sides.
Jan 16, 2012 at 12:21 AM
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