Question about 1997 Chevrolet K1500

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My 1997 Chevy c1500 5.0L misses very bad with loud poping noise coming from underneath truck. This happens only after I drive for about 30 min. And turn off truck and restart. After I start it back up it is pure hell. Like riding a bucking bull! I just had distributed and all ignition tycomponents replaced 4 months ago. Any ideas?

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  • Mike Butler
    Mike Butler Mar 28, 2012

    Does it run good when cold?  Let truck sit for a while and restart what happens?

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1 Answer

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  • Chevrolet Master
  • 1,811 Answers

Test that the temperature sending unit in the water system is working properly. When the engine is cold, the computer puts it in cold start mode. Once warmed the temp sensor tells the computer to stop sending excess fuel to the engine and taking the cold start mode to off position. If the sensor is faulty, it stays in cold start mode and keeps dumping excess fuel into the engine causing your situation. Like your running with the choke on after warm-up.

Posted on Nov 11, 2017

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6 Suggested Answers

6ya6ya

6ya staff

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Posted on Jan 02, 2017

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Anonymous

  • 1 Answer

SOURCE: 1989 Chevy Truck 350 Stalled Wont Start After I filled Gas Fuel

You need to check the fuel pressure to the TBI. I just fought one which was doing the same thing. I pulled the fuel tank to replace the fuel pump. It turned out to be the short hose from the fuel pump to the steel line coming out of the tank. It had a split in it so I wasn't getting enough fuel pressure. Some places show two pumps available. One you can pull the unit and replace just the pump. The other the pump and sender are all one unit. Hopefully you have the first one. The second is around $300.

The easiest way to get to the top of the tank is to pull the front 6 bolts mounting the bed and loosen the back two. Take the three screws from the filler neck and unhook the rear axle vent tube. You can then take an engine hoist and lift the front of the box. You can get right to the pump and gauge assemble in the top of the tank. Most times, this works easier than emptying the fuel tank and removing it.

Posted on Dec 18, 2008

mrgreenz

Daniel Arellano

  • 962 Answers

SOURCE: 2000 Chevy s10 starting problem

Check the ignition and Engine relay switches located under the hood. Sometimes relays go weak with age and even a bump on the road will shut them off. If you can turn the truck on, take it to Autozone or similar store for a free DTC scan code.

Posted on Jan 09, 2009

Anonymous

  • 6 Answers

SOURCE: No power up hills and pinging noises come from TBI little back fire.

Sounds like the knock sensor has failed. It's on the passenger side at the bottom of the engine block, in front of the starter. One wire going to it. Have you checked the timing lately, maybe it has moved?

Posted on Apr 19, 2009

Anonymous

  • 56 Answers

SOURCE: 2003 Chevy Impala periodically won't start

Try under the dash, attached to colum is a switch that the rod goes into from your ignition key switch, that may need to be adjusted tword your steering wheel just a touch, they go out of alignmnet from time to time

Posted on Sep 15, 2009

Anonymous

  • 1 Answer

SOURCE: 1997 chevy blazer ignition switch

1997 blazer put car in park shut it off but, key won't turn far enough back to come out

Posted on Jan 02, 2010

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