Doug,
Pinging: My 1999 Dak w/V6 pinged like mad...at least until DC came out with the flash upgrade. The flash supposedly retards the ignition by 4 degrees and changes the injection timing a wee bit. I couldn't stand the pinging any longer so I had the flash installed. Much, much better...and no noticeable power loss. I'm not sure if that TSB applies to the 98 model though.
Some have had success changing spark plugs...even going to a cooler range plug. Others have had success changing to a 180 degree thermostat. When I changed out my spark plugs, I found that #4 was the one pinging the worse.
Locking rear brakes: Years ago, I experienced this problem on one of my vehicles. It turned out that one of the rear axle seals was leaking. The gooey mixture of axle grease and brake dust made the brake shoes stick inside the drum. It wouldn't hurt to pull the drums and have a look.
-Mitch
> From: "Greig, Doug" <douggr@hazelett.com>
> Subject: DML: To ping, or not to ping and rear brakes......
>
> I've finally joined the club. After reading numerous discussions about other
> trucks pinging, only to ignore them because mine didn't ping, I'm finally
> looking back in the archives for the fix's. Coming back from Canada last
> night, doing 75 with cruise and no Air Cond, I was cruising up some hills
> when I heard a strange rattling noise as I progressed up some of the steep
> hills around here. I thought it was a loose heat shroud or something. My
> passenger(an old race car driver from around here) asks me "hey how long she
> been pinging like that?" He than went on to explain what was going on ,etc.
> with pinging and what I should check out to correct it. So now I can be
> added to the list.........
>
> Also, does anyone elses rear brakes lock up the first time you step on them
> in the morning? Mine lock up on mornings where it was either really humid or
> had rained the previous night. Along with locking up, it makes a terrible
> screaching sound too. Goes away as soon as I start going down the road. Just
> curious. Wondering if it's time for new pads or to have the ABS checked out.
> Thanks
>
> Doug Greig
> 98 CC 4X4 V6 Sport
> Quick D Intake
> Mod'd V8 TB
> Accel Coil/Wires
> IAS Mod
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:53:34 EDT