Eng running a little rough
#1
Eng running a little rough
Hi, I have a 2001 Chevy Silverado Z71 truck, 5.3 eng, 170K miles.
The engine is running ok but has a minor rough spot at idle and when running (a minor shake). The basic passenger in the truck would not notice it (unless they were a mechanic) but I do because I have owned it since it was new (and I am an amateur shade tree mechanic).
This week I just did the 2nd tune up on it (at 170K miles, plugs & wires only) and I still have the rough spot. The 1st tune up was done at 100K miles. I thought the problem would go away with the new plugs/wires but did not. Now I'm thinking injector or coil? Anyway to narrow it down? Thanks. Steve
The engine is running ok but has a minor rough spot at idle and when running (a minor shake). The basic passenger in the truck would not notice it (unless they were a mechanic) but I do because I have owned it since it was new (and I am an amateur shade tree mechanic).
This week I just did the 2nd tune up on it (at 170K miles, plugs & wires only) and I still have the rough spot. The 1st tune up was done at 100K miles. I thought the problem would go away with the new plugs/wires but did not. Now I'm thinking injector or coil? Anyway to narrow it down? Thanks. Steve
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ace6969
Beretta, Corsica, & pre-1995 Lumina
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October 7th, 2006 3:28 AM