What could it be

Asked by Dec 24, 2014 at 04:45 PM about the 2000 GMC Sierra 1500 SLE Standard Cab LB

Question type: Maintenance & Repair

My 2000 gmc starter went out my dad who is 80 keep pumping the fuel in to it and when I
put the new starter on it started to pop and have low power. What could it be

4 Answers

60,915

You're Dad is remembering the days of carbureated engines. Pumping the gas pedal on a fuel injected engine does absolutely nothing. Check the wiring down by the starter AFTER disconnecting the negative (-) battery cable. Sounds like something that's hot touched something metal like the exhaust manifold. The "pop" that you heard was most likely the arc when it touched. Once you're sure that nothing is touching anything metal check all of your fuses. I bet when the "pop" happened one or more fuses blew. HTH. -Jim

I replaced the starter and it started great but ran like crap. Took out the spark plugs and they where fald out bad. Did I also say he hasn't changed the plugs or wires in. 4 years. After I put the new wires and plugs in it will not start. Just turns over and over. I checked the spark on number one plug I have fire it's a 4.3 V6

60,915

Do you have fuel and compression? -Jim

Yea great in both area

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