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06-07-2002, 07:29 PM
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#1 |
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Registered User
Join Date: Aug 2001
Location: College Station, Texas
Posts: 486
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engine stumbling & tach going crazy
When accelerating from a stop my trucks engine stutters. What could cause this
 I also noticed that when this happens, my tach spikes up a few hundred rpm, (without the engine's rpm increasing) thanks
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1972 Chevrolet C/20 LWB, BB 402, Tach, Bedside Toolbox, Posi, Factory AC, Factory AM/FM, cruise, Dana 60 |
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06-07-2002, 07:31 PM
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#2 |
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Registered User
Join Date: May 2001
Location: Honolulu, HI
Posts: 1,237
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Check for vacume leaks around the carb and intake. Also, check your plugs and wires and depending on what kind of distributer you have I'd also check your points and timing.
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06-07-2002, 08:10 PM
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#3 |
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Registered User
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,772
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When I 1st got my Blazer the factory tach. was a little irratic.I changed out the plug wires with some quality ones during a tune up and the tach. has been reading steady ever since.
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71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE |
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