Recent content by Schurkey

  1. Schurkey

    1997 5.7 Vortec misfire/stumble

    The Usual Three: 1. Verify fuel pressure at prime, at idle, and under load. Assure the fuel filter isn't plugged. 2. Verify all "tune-up" items--parts and procedures. Distributor cap, rotor, plug wires, spark plugs. O2 sensor. Check PCV, EGR, EVAP systems, and the heated air intake (if...
  2. Schurkey

    Front end rebuild

    The reason the upper ball joints are different based on GVW:
  3. Schurkey

    Cooling System Upgrade/Replacement

    1. I just love the concept of the lever-lift radiator caps. I'd have one on EVERY vehicle I own...If I could get them to hold pressure. I've got a few nearly-new lever-style caps back in their boxes, sitting on a shelf in the parts cabinet in the shop. Lift the lever, all the pressure goes...
  4. Schurkey

    305 tbi starts , immediately stalls, runs good on 2nd start?

    Some vehicles have the fuel pump prime connection as one of the pins in the Diagnostic Connector under the dash. Others are a separate wire in the engine compartment. Verify with the service manual set for your vehicle. Any particulate matter that gets run through the fuel pump will have the...
  5. Schurkey

    98 Chevy k1500 350, low oil pressure and misfire.

    1. Verify fuel pressure during prime, at idle, and under load. How old is the fuel filter? 2. Connect a scan tool, look at the misfire COUNTS for each cylinder. Find out which cylinder(s) are acting up. 3. The OEM poppet-valve fuel injector spider and regulator assembly is infamous for...
  6. Schurkey

    TBI SENSOR DIAGNOSTIC - HOW TO WITH A MULTIMETER:

    Let's define "high impedance". GM used to specify a minimum of 10 Megohm input impedance. Higher is better. On extremely low-amperage circuits like the O2 sensor, you can actually see a voltage difference when testing with a 10 Megohm unit vs. a 20 Megohm meter. The higher the input...
  7. Schurkey

    98 K2500 7.4L Suburban Cruise Control Cable Fix

    Get a replacement from the Treasure Yard.
  8. Schurkey

    Gabriel ltv shocks

    Deck height of the Buick 350 small-block is taller than the deck height of the BBC, and by quite a bit. OTOH, the bore center dimension is really small. The Buick 350 has a very small bore, and a very long stroke, which is "what they could do" with the Buick small-block architecture. Pontiac...
  9. Schurkey

    Cooling System Upgrade/Replacement

    I really liked the safety-lever rad caps...until I figured out that they weren't pressurizing the cooling system. I still don't know why they weren't working for me.
  10. Schurkey

    Gabriel ltv shocks

    Yup. Non-gas-charged shocks are suitable for bias-ply tires. They're from the same era. What Buick? Sounds like fun. Small-block, or 400/430?
  11. Schurkey

    Diagnosing Ignition Parts

    Download the service manual set for your vehicle from the links in the Sticky thread section of the Engine forum. Depending on the year of the vehicle, you may be specifically looking for the Emissions manual. Wild Guess with no evidence: You're not going to diagnose the ESC module with a...
  12. Schurkey

    IAC counts high

    Adjust it according to the service manual. Nearly every time someone messes with the base idle screw, they have problems with idle speed, IAC operation, or sticking throttle blades until that screw goes right back to where it was. Yes, of course verify lack of vacuum leaks, PCV operation...
  13. Schurkey

    305 tbi starts , immediately stalls, runs good on 2nd start?

    As said, there's dozens of threads about scan tools. A search of the forums will reveal much info. Here's one, although not exactly what you're looking for. https://www.gmt400.com/threads/confirmed-brake-bleeding-scan-tools.67047/
  14. Schurkey

    93 ext cab short box engine swap

    Two-piece rear main is no real problem. They take longer to install properly than the one-piece seal. Once installed properly, and assuming the crankshaft seal area is not damaged...they're good-to-go for pretty-much the life of the engine. I'd expect the clutch will work fine with the...
  15. Schurkey

    Will this swap work?

    Caprice flat-tops raised the compression ratio from 9.2 to about 9.6. Never had a detonation problem, never filled with anything but 87 octane.
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