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I was doing some tuning and checking out how to test the PCV valves. The manuals say to remove the PCV hose and check for vaccum on each valve. The PCV valve closest to the firewall has a lot of vaccum. The valve closest to the grill has none. The hose doesn't have vaccum or pressure on it...

Here's the situation: *Replaced oil cooler line o-rings. (BTW-If you go to the GM dealer be sure that you get the "reinforced" o-rings detailed on the relacement drawing. A couple of trips back and looking at HIS screen fixed this.) (no problem noticed) *Changed oil and filter. *Decided it...

I sent my prop shaft to Dynotech to get the boot replaced and rebalanced. They said that they no longer service/have parts for this "older" model prop shaft. It's off of a 92 Ty. It looks like someone rebalanced it at one time. Has anyone else had a similair experience? [/url]

Looking to buy a diacom cable or a complete datamaster set. Please email.

When I go to reset the ABS I hear what sounds like a piston actuaying, kind of a moan, and then what sounds like arcing or chatter. The reset doesn't work and the light stays on. I've gotten just about every code possible. This unit is about 8 months old. Any ideas? Would a grounding...

What is the running voltage supposed to be? I read about mid-point(12V+).

Well I'm on TC #2. It's been about 18 mohths and I'm experiencing hard vibration at just above 40mph on low acceleration. I think it's the TC gong bad again.(Same symptoms last time. New one seemed to fix it for a while.) Took the truck to ANOTHER local shop and the guy said the Driver side...

When I go to reset my never ending problem, the valves(?) seem to engage, the ABS light goes out for a question, a harsh ticking/electrical arcing noise occurs and then the light goes back on. I get different codes at different times. BTW - This is the 2nd unit to go bad after the stock one...

In looking at the wiring diagram for my ABS it says there is a fusible link in the circuit. I'm not to familiar with fusible links. Do they have a slow burn? I ask beucase I'm getting 11.5V @ the ABS unit and the battery is putting out 12+V. I'm pulling a 65 and 66 off of diagnostics. I'm...

A couple questions: 1)Where can I get new postive and negative battery cables with the proper wires attached? 2)What is the purpose of the negative wire terminations just off of the battery? My connectors are corroded and I'm concerned I have a bad ground? 3)What's the proper way to check for a...

Local shop has replaced my ABS box 2x now. Looks like it just failed again. Has anyone else had a similiar problem? I bought the truck with 45k miles. The original failed at about 90k. In 11k I've had 3 fail. They are Cardone rebuilds. Also, do you think that I should pay the labor to...

I've had my ABS replaced now 3x. All of sudden, not even under hard braking, the ABS light came on again. It is the hottest day so far that the newest unit has seen.(Replaced 10/03) I pull a code 65. Same code I got before. When I go to reset(hoping this is all I have to do) it sounds like...

First, I don't beat the truck; Tracked once. At about 80k I started to get a bad shutter when the truck was in 2nd or higher gear when I was at low RPMs and starting to slowly accelerate. Guy told me my TC was bad. Replaced TC. Seemed to do the trick. About 12 months later the shuttering...

What's the real trade off between price and quality on the different IC Pumps? I've seen the Johnson at $50 and also at $150. How much is the stock?

What are the two, appear to be threaded, holes for at the bottom of the Flywheel cover? Is something supposed to go in them?

I started to have a rumble recebtly when I was starting(engine cranking) my truck. It started a little bit at first and now it happens all the time. I replaced the starter to no avail. Flywheel? Any help would be appreciated.

I have my TC replaced about 18 months ago. The hard vibration I got at low loads went away for about a year. It started up again about 6 months ago. Has my TC gone bad again? Was it bad in the first place and the new one just covered up another problem? When I told the guy who installed it that...

I have my TC replaced about 18 months ago. The hard vibration I got at low loads went away for about a year. It started up again about 6 months ago. Has my TC gone bad again? Was it bad in the first place and the new one just covered up another problem? When I told the guy who installed it...

I know the rims are bent and need replacing. (This probably created the problem.) The steering is loose and the truck shakes pretty hard at about 50mph. I don't want to drop thousands of dollars into the truck. What would be the most direct/easiest way to trouble shoot front-end/steering...

I got my front pads replaced about 1.5 months ago. Two weeks after brakes died. Pulled a code 65. Following path indicated to replace ECHU. Took the truck back to the shop that replaced me pads.(They indicated that the ABS bleeders were open when the calipers where compressed back.) THey...