Weird tach/stalling issue
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Joined: Apr 2013
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Weird tach/stalling issue
I sometimes will be going down the road and the engine will quit firing, the tach will fall to 0 real quick and then shoot back up and then the truck is fine again... it's a stick, so even if it were to quit running the tach shouldn't fall to 0. Sometimes it will cut off, and not start again for a while.. but i can see the tach bouncing right off the 0 when it's trying to start... Truck is a '95 4.9... sound like an igniton control module issue?
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Joined: Mar 2006
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the tach is reading the negative side of the coil.
if the coil stops firing, the tach will drop to zero- whether the engine is turning or not.
definitely an electrical issue- but '95 is way too new for me, so that's all i can say.
if the coil stops firing, the tach will drop to zero- whether the engine is turning or not.
definitely an electrical issue- but '95 is way too new for me, so that's all i can say.
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Joined: Dec 2003
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From: Northern California
I sometimes will be going down the road and the engine will quit firing, the tach will fall to 0 real quick and then shoot back up and then the truck is fine again... it's a stick, so even if it were to quit running the tach shouldn't fall to 0. Sometimes it will cut off, and not start again for a while.. but i can see the tach bouncing right off the 0 when it's trying to start... Truck is a '95 4.9... sound like an igniton control module issue?
It took me a while to find that in my truck.
Bob
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79boston150
1987 - 1996 F150 & Larger F-Series Trucks
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May 6, 2009 06:43 PM
