1987 Chevy Silverado Stalled Out on Highway

140,000 MILES • V8 • 2WD • AUTOMATIC
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HEARTBANDIT
  • MEMBER
  • 1 POST
Hello,

I recently bought a 1987 Chevy Silverado half-ton pickup truck, 305 engine. I don't know much about engines, that's the size I was told. It's a good truck, definitely a bit sluggish but still has juice in the accelerator. Today I was driving it down the highway, around 60 miles an hour, and it suddenly felt like it slipped out of gear or something--the accelerator no longer worked, and the service engine soon light popped on. I got it onto the shoulder, and shut the engine off. I waited a few minutes, then tried to start it. It wouldn't turn over the first couple of tries (it's never done that before), then when it did a big puff of black smoke came out of the tailpipe. I was able to drive it the 10 miles home, but it's parked now until I can get it fixed. Any thoughts on what the problem may be, and how expensive it could be?

Thanks,
Kelly
Apr 1, 2010 at 9:52 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
If its cranking over and will not start-Do below and comeback with some results we start here.

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
Apr 1, 2010 at 10:27 AM
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