gw1500se

I have a ignition wire harness that seems to have been chewed by squirrels (see photos). It seems to go all the way to the main fuse/control box but all the harnesses I can find seem to imply there is a connector somewhere along the way but I cannot find it. Can someone tell from the photos what I need to repair this? I thought about splicing it but there are connectors that are cut off right at the end. TIA.

Good news and bad news. The good news was that removing the security system was relatively easy. The bad new is that it changed nothing. So I am back to my original question. There must be some corroded connections somewhere and I need some kind of map to find them. TIAA.

Thanks. The system was already installed when I bought the truck so no manuals were provided. It worked fine until recently so I have to assume it was wired correctly but now the unit is either failing or there is a corroded connector somewhere. Using the Alarm Code website it appears the unit is somewhere under the dash so I will need to find it and trace the wires. In any case it sounds like removing it is the best first option. The truck is old enough that I doubt there is any significant risk without it.

Interesting reply. Thanks. The solenoid was the one that is supposed to match the the tranny with 16 pan bolts (Standard Motor). It may be academic at this point as they may well not be the problem. Ive' looked for the system but without much luck. I guess I need to look a lot harder. I'm guessing it is attached under the dash and in such a way that there is no logo or identification plainly visible.

I have a 2000 GMC Sierra 1500 4x4 (4.8L), purchased used, with some new odd problems. It started with the service engine light (see my orignal problem here). After receiving a new PWM solenoid but before I had a chance to install it, the odd behavior started. But first before this, was a problem with the power locks. I have an after market security system (Alarm Code) and occasionally when hitting a bump or coming to a stop the doors would unlock for no apparent reason. Sometimes the power lock switch (not the key fob) would not lock the passenger side and other times it would not work at all. I didn't pay much attention to it since it was no big deal. Not sure if that is related but the most recent issue is that when I start the truck and the service engine light is not on, the truck will not idle (stalls). After it warms up by keeping it above idle, I shut it off and it will start with the service engine light back on then run normal. I think there are 2 possibilities. Either the Alarm Code is messing up (if I knew how/where, I'd remove it) or there is a wire harness problem somewhere. It is my guess the problem is more likely to be the latter or at least that is where I want to start. After that long winded explanation my question is where can I find a map of connector locations so I can check them all out? A corroded connector is the most likely culprit. The wiring diagram does not say where the connectors physically are located. TIA.

After a bit more observation, I now doubt it is the pan. It seems like it only leaks after the engine has been running. That implies the leak is occurring where and when there is oil pressure. Since there is no pressure in the pan, that means it would be around the previously mentioned blocker plate where I assume there is pressure.

Ah, thanks. I could not tell from my cursory look that it was part of the oil pan. Hopefully it is not the pan gasket. It does not look like an easy thing to replace.

My 2000 GMC Sierra 1500 (4.8L V-8) has developed an oil leak somewhere above the oil filter (not the filter itself). I cannot see any leak around the valve cover (both gaskets were replaced recently) nor around the head gasket. I have not been able to examine it from below very well yet but I'm wondering if the filter housing is a separate part attached to the block and uses a gasket rather than being machined into the block itself. If not a separate part where the gasket can fail I have no clue where the leak could be coming from. Can someone confirm my theory or suggest where in that area a leak might originate? TIA.