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  1. Schurkey

    Cap & Rotor

    No. The pickup coil wire insulation fails over time, the conductors within the insulation can break. The magnet near the pickup coil tends to crack by the rivets holding the parts together. On earlier designs of the pickup coil, the magnet was part of the pickup coil rather than part of the...
  2. Schurkey

    starter bendix gremlin

    Possible. Not at all common. I've never seen one cracked/bent/broken, although I've seen lots where the shift fork had excessive wear. Damage would be REALLY uncommon on a freshly-rebuilt starter.
  3. Schurkey

    '93 K3500, 454 TBI, poor drivability

    Fuel pressure gauge might be available at a local parts store, via their "loaner-tool" program. Might consider a cylinder leakdown test to verify valve seal.
  4. Schurkey

    Gas flow

    Spark TO the plugs does not mean there's spark across the plug gap. Fouled plugs can be relatively invisible. Spark at the wrong time can cause the engine to not run. What is the base ignition timing? Connect a scan tool, verify EVERY sensor and computer output. What is the cranking...
  5. Schurkey

    Vortec V6 vs V8 A/C System Differences?

    What vehicle? The one in your signature? "I" would see if there's any remaining refrigerant in the system. If so, a thorough leak-test is in order. If not, vacuum the system and see if it holds that vacuum. Either way, look for traces of refrigerant oil on all the various connections, and...
  6. Schurkey

    gear ratio help for a newbie

    Yes, that axle is junk. It's a hand-grenade with the pin out. In most cases, they came with crappy rear brakes, too. GM had no business putting the 8.5" axle under a full-size pickup. The 8.5" works great in compact and intermediate cars with small-blocks. You wouldn't be swapping from a...
  7. Schurkey

    Abs bleed

    Snap-On Zeus? Really nice, really new, really expensive. I've never seen one in real life.
  8. Schurkey

    Brake problems

    1. Are the park brake cables in good condition? 2. Do you USE the park brake frequently? The park brake is what keeps the crappy, junk 254mm (10") leading-trailing shoe rear brakes in adjustment. Did you bleed the brakes using a scan tool to auto-bleed the ABS? Air can be trapped in the ABS...
  9. Schurkey

    Abs light on, strange behavior

    I'm thinking that the speed sensors are on external brackets, and the tone rings are on the CV shafts, not inside the hubs. MAYBE the sensor brackets are bent, so that the sensor is too far from the tone wheel. Worth checking. Beyond that, I've had multiple vehicles where the wire harness is...
  10. Schurkey

    94 k1500 brake shoe and drum size

    Yup. That'd make a difference. Kinda surprised that it causes the cable to be a foot short, though.
  11. Schurkey

    Caliper Hitting

    The shimming spec is for BENDIX calipers used on JF9 C3500HD trucks. Those calipers are Delcos, the Delco calipers are used on everything EXCEPT the bigass heavy pickups. The caliper seems to be "rattling around" between the abutments/braces/bracket ends of the steering knuckle. The caliper...
  12. Schurkey

    1998 GMC c1500 sierra missing front and rear sway bar

    My '88 K1500 5.7L had no front sway bar. Got a "great deal" on a C1500 front sway bar...and found out it doesn't fit. The 2WD and the 4WD sway bars are completely different. Found a 4WD sway bar at the Treasure Yard. Nice improvement. I don't have a rear bar, but maybe I should look into...
  13. Schurkey

    1995 Chevy k1500 5.7/350. Can't get rid of the positive camber

    VERIFY THE RIDE HEIGHT using the genuine GM official procedure. Look at the control arm bushings top and bottom. REALLY good chance that the upper bushings, and maybe the lower bushings are wiped-out. The steering and suspension in general should be examined closely for wear. Ball joints...
  14. Schurkey

    1995 k1500, 5.7/350. Backfires through intake

    There's a dozen things it "could" be. Verify fuel pressure and a decent spray pattern from the two injectors. Connect a scan tool, verify ALL the sensors, and ALL the computer outputs including but not limited to electronic spark advance, EGR system operation, EVAP system, etc. Check all the...
  15. Schurkey

    Intake manifold

    How on Earth would he connect the spider injection system? I'd be all-over some Treasure Yard looking for a "good used" manifold.
  16. Schurkey

    Grounded alternator, now no start

    Why does the battery have only 12.2 volts? That's WAY discharged. A fully-charged automotive "12 volt" battery should have 12.6--12.8 volts depending on construction. 12.2 is about half-dead.
  17. Schurkey

    Tbi distributor magnet protection from rust question

    What is the coating used on GM wiper motor circuit boards? I assumed it was a "Conformal" dip-treatment.
  18. Schurkey

    starter bendix gremlin

    Common misconception. If you look at how the starter solenoid is constructed, the starter motor cannot get power--and therefore cannot spin--unless the solenoid plunger is magnetically drawn-in. And if the solenoid plunger is drawn-in...the starter drive pretty-much HAS to be engaged with the...
  19. Schurkey

    Crank no start no rpm 96 5.7

    That seems to verify the rest of the ignition system. Good. I wouldn't expect that...but clearly something is wrong with the sensor/reluctor system, and the sensor seems to work. So that leaves the reluctor.
  20. Schurkey

    1995 5.7 head / head gasket issue.

    Leakdown testing of the cylinders, looking for bubbles in the radiator. (And also for leakage past the valves, and assessing leakage past the rings. If the engine is shot, or the valve leak, you'd want to address that before you cram another head gasket in place.) Pressure testing of the...
  21. Schurkey

    Upgraded injectors

    HOLD THE CAMERA STEADY. I get dizzy watching that video.
  22. Schurkey

    ECM trouble dtc 51 PROM error

    MAYBE merely disconnecting the battery, removing the PROM, (using standard anti-static protocol) re-seating it, and reconnecting the battery will fix the problem.
  23. Schurkey

    Rats... need a new part

    I replaced a PCV elbow on my Luminas with an orange-silicone 90 degree spark plug boot. Seen on the front cam cover, left side of photo, near Copyright symbol. Years later, still working well. No promises on a plug boot fitting that application, though.
  24. Schurkey

    350 vortec choppy cam

    ABSOLUTELY. You'd be throwing-away low rpm torque. A small-block in a heavy vehicle needs all the torque it can get. The deep first gear of a 4L60E helps some. The bigger problem is getting the computer to deal with the poor cylinder filling at very low RPM. Not recommended for the...
  25. Schurkey

    Slight knock?

    Yeah, that's why I "Like" most, but not all of your posts. I'm trying to say that you have a way with words, and you have an affinity for philosophy that I usually agree with. You go beyond actual "mechanics" of how vehicles work, into a discourse of how the world works...or doesn't work...and...

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