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Just found an old thread by BigT and I see that the bracket and sensor are suppose to be one piece. The new one would have explained it to me.

Those tabs are "magic" if they are working you could probably limp through the summer if you aren't pulling and keep off the go pedal. I would carry the necessities to do the "tabs" on the road, I did and it got me home about 50 kms. Plan to do the job though and with an offer like daves I...

They were light to dark brown, look very brittle, but none were broken...yet. I got the CPS, OPS and 16 rocker arm retainers all from Rock Auto delivered for $106.34 CAD The CPS was a beotch to get out, think it has been in there a while and no doubt flaky. Always had a hard start which...

Thanks, I will look them up.

Thanks Marty, I had hoped to get local, but with Rock Auto prices I think that might be the way to go. Browsing Rock Auto now.:thumbsup:

I finally found a GM # for the rocker arm retainers GM #23500076 I would still like to know if I can get these from some where other than the stealer. Thanks

OK got the heads off and doing some cleaning of parts. There are some small cracks in the cups and one small crack between valves on # 8 cylinder.:mad2: They are all small and I won't be pulling with this truck any more, Don't drive it much anymore just used for around the home truck things...

^^^^^^^^ Exactly what I was going to say!:D

Similar symptoms for me and it was the dash control unit, very easy to change and was an upgraded unit.

Everything you wanted to know about timing but was afraid to ask...but you did ask. LOL http://www.thetruckstop.us/forum/showthread.php?11754-FYI-TDCO-Timing-the-DS4-Injection-Pump Range is.. NOTE: While total available range for TDCO is +2.50* to -2.50*, PCM will DTC between -2.02* to...

CPS should be on the right side of the timing cover when facing the front of engine. If the engine is dirty do yourself a favour and get some engine degreaser and blast that area good then power wash. There is a bolt holding a clamp which holds the sensor in place.

A little tool I made up to chase the Head Threads. I had an old grease gun and took the handle off and pressed onto the tap (a nut of the right size will work too) Great for the tighter spaces! M12x1.75 Tap size

I like the cherry picker idea as I can leave the exh manifold on, saves doing it after and saves me and the HD gasket. I already have passenger side head off , but didn't really want to remove the driver's side! Didn't look like it would help a lot , mainly the steering column in the way.

Leak out the back which seemed to be coming from gasket. Hard to see back there, but I had cleaned area with Brake Kleen and dried off and then checked again (only did it when engine hot and continued until cooled). After being cleaned it was dry above gasket and wet below. That plus 16 years...

It just looked real hard to get at the exhaust bolts, never mind using a torque wrench. Do you have to remove inner fender or anything else?? Lifting that head back in gently as to not damage the HG in those tight spaces worries me. Hope I can find someone to give me a hand like my son, but...

Well I got the driver's side head off, but damaged the HG too much for it to tell me a story. It is 16 years old and 252,000 kms so I figure it is living on borrowed time and did suspect a leak out the back. One thing I did find is the blocking plate studs on back of head were loose, I took...

I had seepage out the back of driver's side head a year ago, no coolant in oil or combustion in coolant problems and I put in the GM tabs and drove it a year no problems. It was my daily driver at the time and I was about as down as you seem to be. Now it is not my daily driver any more so...

Anybody have the GM part # for the rocker shaft button thing-a-ma-jigs? :rolleyes5:

Thanks bobbie

No stitches yet! I will be using gloves to put back in.