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Recently a P1179 code came up. I checked the fuel pressure and am getting 37 psi with key on and 31 psi at idle. When I disconnect the vacuum line on the fuel pressure regulator it goes back up to 37 psi. After shutting off the pressure is 37 psi and holds there. I replaced the fuel pump earlier...

Do you have pictures of the D1 covers yet? Also any pictures of the tactical option?

Does the top one on the right in the picture have a broken tab?

I haven't owned an RRC yet, but have these been swapped into a D1 bonnet?

PM'ed you.

Were there any RRC LWB versions that had coil springs on all four corners from the factory even if it was an overseas option that anybody knows about? I know that they can be converted from air bags to coils. I am just curious if any were ever offered from the factory that way. If they were...

A little late with what went wrong. It ended up being the multi function unit that went from an o2 sensor shorting.

You might take the switch apart and find the brass or copper contact plates. I found little bumps that had formed. I took a Dremel and sanded down the bumps then polished the plates. The switch is no longer intermittent. The hardest part will be putting the switch back together correctly.

It seems about the same, no noticeable difference.

I pulled the pump, hooked it up to a battery and it works. When plugged back in I am not getting power to pump. No fuses are blown. I am not sure which relay or computer might be bad. I have a 97 pre-advanced evaps 4.0. where the fuel pump relay is combined with the main relay in the relay...

Yes

I checked the voltage again with a different multimeter. I received voltage for a short period around 12-15 Volts. So I think it might be the pump. Question is, would this cause the Check Engine light not to come on before turning the key to crank over?

Checked fuses in cab and under the hood. All look good.

D1 will not start. Check Engine light does not come on when the key is turned on, I do not hear the normal hum from the fuel pump when it primes. When I have someone try to start it I don't receive voltage to the pump. The battery and starter are good, the engine cranks over fine. There are...

I know that not starting could be a failed CkPS, I just wasn't sure if there are any symptoms before it goes out or if it just dies without warning.

I will check the belt. It is cheaper and easier to replace than a CkPS. Just in case down the road, what are typical signs of a CkPS failing or does it just go without warning.

On my 97 D1 I have noticed a light squealing noise. This seems to correspond with the tachometer. The tachometer will sit below 500rpm or whatever it is at before start up. While underway the tachometer acts like it is dead, then the squealing starts and goes away then the needle will rise on...

I installed a Detroit, the gear pattern looks to be right on. My question is how easily should the diff turn inside the third member sitting outside of the axle housing? Should it spin for a while after you spin it or should it stop spinning pretty soon? When I put a torque wrench to the...

I found that if you take the switch apart, there are contact points that have a buildup that if you grind them down then polish the surface it fixes this problem.

Thanks Nathan. Posted part wanted one day, have the part the next day. Thanks DWEB as well.