Articles
4.3L v6 dies after 10 minutes
My 1993 Sonoma with a 4.3 v6 engine with a throttle body started dieing after it has run for about 10 minutes. The only way you could get it started was to spray ether down it's throat. If you cranked it and looked down the throat there would be any gas being sprayed, not even when you turned the key on would it spray. If you let the truck sit for an hour or so it would then start and run for 10 minutes.
Now in my old mind I had a fuel problem so I replaced the fuel filter, no help. Checked the codes in the comuter and it said that it was the throttle position sensor, replaced it and still had the problem. Tried resetting the computer and that didn't help. Checked codes and got a MAP sensor code, so that was replaced. Now we've got over a $100 worth of parts and I still could only go 5 minutes from the house so I can get back home without having to be towed.
Through all this I kept looking at a fuel problem, checked the injectors and they seemed fine and the spray pattern looked pretty good for a motor with 150,xxx miles on it. Finally I found a friend of a friend who had one of the good code scanners. He came over and hooked it up and we started the motor and let lt run. I kept my fingers crossed that it wold die after 10 minutes. Sure enough after it was running for 10 minutes it died as if the key was turned off.
He read the scanner for awhile and used the included book and came out and told me I need an ingition module. He check the wiring by back probing the computer and the injectors would spray. I'm still having a problem believing that an ingition module was causing afuel problem but what the h*ll I wasn't getting it to run with what I has tried so off I went to the parts store.
The new ingition module was about $35.00. We installed it and started the truc, it ran for over 20 mintues well that was progress. All this happened several month ago and the truck has run fine ever since. I guess I'm just to old scool and don't get the connection between the ingition moudle and the fuel shutting off. I was told that when the ignition module heated up it was telling the computer to shut the fuel off to the injectors.
Chevy Brake Problem
The brake calipers on a '70 Chevy will not let the rotors turn by hand. I have installed a new master cylinder, new calipers, new brakelines and new pads. When I say \"Turn by hand,\" I mean with the tire mounted. it takes all I've got to move it. There must be something wrong because pads don't last very long 4000 miles or less?
A: The reason the front brakes are staying on is due to residual pressure in the brake system. Of course the question is why is this? If both disc brakes are dragging then the problem is likely with the master cylinder, even though it's new.
There are 3 possibilities.
- Check the push rod from the brake pedal to the master cylinder. Some push rods are adjustable and the adjustment can change. If the adjustment is too tight the push rod can actually cause the brakes to drag in the manner you describe. The fix would be readjusting the push rod or, if not adjustable, adding shims to provide the correct clearance.
- There are check valves used in master cylinders called residual check valves. The residual check valve is used \"only\" on drum type brakes. If a residual check valve is used on disc type brakes it will cause the brakes to drag. Your vehicle's brake system requires a residual check valve for the rear brake (if drum type) and no check valve for the disc brakes. If the master cylinder has a check valve in each port then it's the wrong master cylinder for your vehicle.
- Human factor, be sure that the rear brake line didn't get crossed some how with the front.
'38 – '40 Willys Striker Plate Installation
To install the striker plate follow this procedure to keep from loosing the bolt retainer plate in the B pillar
- Loosen the bottom bolt
- Remove the top bolt and swing the striker plate out of the way
- Using the new striker plate install the top bolt leaving it loose
- Now remove the bottom bolt of the old one
- Swing the new one down and install the bottom bolt
- Adjust and tighten