have a miss at 2200 rpms. When cold runs rough, occasionally backfires
10

Asked by Becky Sep 14, 2016 at 09:11 PM about the 1995 Chevrolet C/K 3500 Cheyenne LB RWD

Question type: Maintenance & Repair

Overhauled the tpi, new distributor, new plugs, new wires, new cap  new rotor button, new computer, new fuel pump, new coil, new thermostat, Truck is not throwing a code

4 Answers
10

Becky answered 7 years ago

Unplugged the egr valve when first started having problems, still had issues. Also, truck has started running rough even when it's warm

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lrodri911 answered 7 years ago

Are there any check engine codes, if not, Check the catalytic converter by unplugging the downtream 02 sensor, if it runs ok for a while, your catalytic converter is plugged up. If still missing, check fuel pressure, spark and timing

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10

Becky answered 7 years ago

Checked everything but catalytic converter, will check and let you know. Thanks!

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