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The burnoff relays are side by side in the same area and the TCC and fuel pump are on the firewall
Local GM parts guy finally got back to me and you guys are right, as usual. Its the main fan relay. The part number is still good and I was able to order one from somewhere in the GM network in West Virginia @ $13. Should get it in the next few days.
Relays dang near never go bad. Are you sure your problem is the relay? Reason I ask, last weekend out for a drive, shocked by high temps that fell with a little speed. Fan wasn't coming on. Once home and cool I found a broken wire on the relay plug. A little solder and shrink tubing and we were cruzin again.
No but those crappy early style non weatherpak connectors do.
I swapped mine out for the weatherpak connector / relays because nearly all had lost the insulation on the wires causing, in the case of my fuel pump a intermitent short on rough roads.
Relays fail in different ways.
1. burned contacts
2. worn pivots
3. overheated contact supports
4. open circuit in coil
5. short in coil
6. loose contacts
7. overheated connector pins/ sockets/blades
8. distorted cases due to heat and misaligned contact arms
Relays are often under engineered, over rated, and overloaded.
relays have many characteristics that dictate their design shortcomings including physical size, wire sizes, location space.
Most relays are sealed, and some are sealed but have a vent to assist in bleeding off gas pressure and ozone, but let in humidity.
just for starters
Relays dang near never go bad. Are you sure your problem is the relay? Reason I ask, last weekend out for a drive, shocked by high temps that fell with a little speed. Fan wasn't coming on. Once home and cool I found a broken wire on the relay plug. A little solder and shrink tubing and we were cruzin again.
Actually, the relay is working fine. However, if you look at the photo closely, you will see where I accidently snapped off the connector hold-down bar from the front of the relay housing. As the wire harness connection snaps in from the bottom, I am afraid that without the hold-down bar in place, the connector might jar loose when going over rough roads or bumps. Sooooooo, I am going to replace it.
Relays fail in different ways.
1. burned contacts
2. worn pivots
3. overheated contact supports
4. open circuit in coil
5. short in coil
6. loose contacts
7. overheated connector pins/ sockets/blades
8. distorted cases due to heat and misaligned contact arms
Relays are often under engineered, over rated, and overloaded.
relays have many characteristics that dictate their design shortcomings including physical size, wire sizes, location space.
Most relays are sealed, and some are sealed but have a vent to assist in bleeding off gas pressure and ozone, but let in humidity.
just for starters
Actually, the relay is working fine. However, if you look at the photo closely, you will see where I accidently snapped off the connector hold-down bar from the front of the relay housing. As the wire harness connection snaps in from the bottom, I am afraid that without the hold-down bar in place, the connector might jar loose when going over rough roads or bumps. Sooooooo, I am going to replace it.
Thanks again for all the great feedback.
P.
They fit in tight but nothing wrong with getting a new one