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Showing results for tags 'troubleshooting tools'.
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At our Jeep TJ Wrangler forum, we've been tackling the #1 Cylinder Misfire P0301 DTC issue. Member Belvedere brought up the weak valve spring issue and offered some great suggestions on changing out the valve springs on a Jeep inline six! Regarding weak valve springs on the 2.5L four or 4.0L and 4.2L inline Jeep six, weak springs can show up in a simple manifold vacuum check. At any steady throttle setting, there will be an erratic, shaky vacuum needle movement with the vacuum gauge hooked up to an intake manifold vacuum source. (Not to be confused with the wider swinging needle movemen -
There are many times when a pinpoint reading of brake hydraulic pressure is useful. Brake safety and vehicle handling require the right hydraulic force at each wheel of the vehicle—at the right time! Knowing precisely how much apply pressure is available at the master cylinder, combination valve, ABS system, wheel cylinders or disc brake calipers can help troubleshoot weak brakes, grabby brakes, brake pull, erratic handling under hard braking, hazardous wheel lock-up and more. Whether you tackle your own vehicle service or operate a 4x4, OHV or motorcycle shop that depends on customer s
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Most engine troubleshooters understand and use a compression gauge to diagnose serious engine seal problems. I use a compression gauge for a quick and general overview of engine condition. In addition to the relatively inexpensive compression gauge, I have used a cylinder leak down tester for over thirty years now. A quality compression gauge is valuable. This gauge has been with me for many years. Ford truck buffs will appreciate the 18mm spark plug thread adapter. Triton aluminum head owners would value the iron FE and big-block heads—with 18mm iron spark plug threads and tapered
