have a chevy blazer that idles good, shifts okay but shudders when you hit 30-40 mph. When you first drive it doesn't do this, but after you have driven for a few miles then this happens. Spark plugs, fuel filter, pvc , apg all have been changed. Does shift hard when cold but fine after it warms up. Any advice on what this may or may not be? O2 senros is what we were told, but NO engine light comes on. THanks
2006-09-28
11:49:50
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2 answers
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asked by
Beth
1
in
Maintenance & Repairs