My 1995 has been sitting for a couple of months now awaiting me to get its new fuel lines, tank, lift pump and bed on it. Thought today I would get the fuel pump, tank, and lines on before bolting the new bed on next weekend. Everything there went well. Problem is when I turn key on, the WTS light never comes on. But as soon as I start cranking, it cycles on and off, as it normally would, when cold starting it. It was 92 here today, so getting it started was not a problem, just sometimes have to try 2 times to get started. Once running it runs better than ever, probably due to the correct fuel presure, thanks to the new lift pump. I plan on trying to get under it some this week checking grounds up front, I have not checked them since I got the truck last fall. Already did the ones back by tank when put new one on. I was wondering if anyone has had this problem before or had any ideas. I browsed through many pages of search resaults with no luck on a similar case. Thanks for any input.

Check the wiring on the two controller terminals for heat discoloration - also check the terminals for loose - the WTS lamp is tied directly to the driver's-side glow harness

Don't know if your OBD-I system is the same as my OBD-II system, but if the battery power is pulled, first start won't power the glows... glitch in programming or what I don't know... Did they cycle after it was running?

Once it is Running the glows do not cycle that i noticed. I did notice while cranking that the they would come on in short burst like I remebered it doing before. Made me think that maybe something is loose and the cranking was causing it to make connection.

Check the wiring on the two controller terminals for heat discoloration - also check the terminals for loose - the WTS lamp is tied directly to the driver's-side glow harness

I have not had a chance to look into this to much this week, but yesterday I did check the cables on controller to see if loose or discolored and they looked normal and were tight.

I am wondering if maybe the vibration of the cranking is causing the relay to work. I am going to try and get out and work on it tonight some.

I have been reading many other threads on similar problems. Just read one that someone said it was an ignition switch and ecm not getting power. I went out and checked. The check engine lights didn't come on when I turned key to on. So, emc had no power. Checked fuses real quick and sure enough ECM-B fuse was blown, it is 20 am mini, under hood. So now my question is, what caused the fuse to blow? Anyone heard of this before.

blew the same fuse on mine when I was horsing the wires near the starter to change my crossover - one rubbed thru!

blew the same fuse on mine when I was horsing the wires near the starter to change my crossover - one rubbed thru!

Thanks, I will have to start looking around for wires that are rubbed through.

I have been reading many other threads on similar problems. Just read one that someone said it was an ignition switch and ecm not getting power. I went out and checked. The check engine lights didn't come on when I turned key to on. So, emc had no power. Checked fuses real quick and sure enough ECM-B fuse was blown, it is 20 am mini, under hood. So now my question is, what caused the fuse to blow? Anyone heard of this before.


We used to see a lot of those. Most of the trucks had lift pump problems,fuel wicking up the wires,water in the connector etc. Replacing the pumps seemd to be the cure.

We used to see a lot of those. Most of the trucks had lift pump problems,fuel wicking up the wires,water in the connector etc. Replacing the pumps seemd to be the cure.

I did just replace the lift pump, wonder if that has something to do with it.