Bad IPDM?

[kev2809]

hey guys, new here! i bought my wife a 2004 armada back in august this year...love the truck! it has 82k miles on it. recently, a few days ago actually, the truck just cut off on her while she was driving. i was at work, so i called my buddy and he towed it back it my house..thinking its just the alternator or maybe even the battery.

well i ran cables to it for a few minutes with my truck, and tried cranking it and it wouldnt turn on. it sounded normal then after a few seconds of cranking it just started clicking, like the battery was dead. over the last month, i would turn the key once and nothing, then turn it again and it would crank normal, but i didnt think anything of it. so now it just wont turn on. i read on here and on titantalk.com about swapping over the relays from the fog lights, but it still wouldnt crank.

any ideas?

[rsoto80]

Sounds like the ECM relay. There is a recall for it.

If that doesn't work then it could be the fuel pump .

[kev2809]

is the fuel pump a common problem? is it supposed to hum when you turn the key? i know on my chevys that when u turn the key but not turn the truck on, you can hear the fuel pump kick on and hum....

i did the ecm relay swap with the fog lamp relay and still nothing. i called the stealership to get a list of recalls and they never called back, but i looked up online and it only had 3 recalls for a 2004 armada, and none of them were this problem.

[kev2809]

i found a reasonable price for the ipdm..

http://www.nissanpartszone.com/parts...4b6-zc00a.html

thinking of ordering it tomorrow and giving it a shot.

[blackArmada_Dxb]

Does the starter kick in?

[kev2809]

i believe so....it sounds exactly like its gonna turn on but doesnt...then the battery starts clicking after a few seconds of cranking

[rsoto80]

Its not uncommon for the fuel pumps to go out on these trucks. If the pump is humming when you turn the key then its priming like it should but that doesn't mean it is pumping efficiently while driving.

It sounds like you have another issue though. Are you sure you swapped the right relay out with the ecm and fog light.? All the relays look the same so its easy to get confused. I had a similar problem with my 04 but when I put a new ecm relay it fixed it.

[kev2809]

i dont hear a thing coming from the pump when i turn the key..is it a distinctive hum?

im pretty sure i got them right...i swapped the second and the fourth (last) relay on the bottom of the ipdm board and still get the same result. this morning it sounded like it even turns on but right back off at the same time, then try it again and it just cranks like it wants to start but doesnt. if i never seen this ipdm horror story, i wouldve automatically assumed fuel pump.

[blackArmada_Dxb]

Originally Posted by rsoto80

Its not uncommon for the fuel pumps to go out on these trucks. If the pump is humming when you turn the key then its priming like it should but that doesn't mean it is pumping efficiently while driving.

It sounds like you have another issue though. Are you sure you swapped the right relay out with the ecm and fog light.? All the relays look the same so its easy to get confused. I had a similar problem with my 04 but when I put a new ecm relay it fixed it.

I agree with rsoto80. I had the same symptoms like you did and it turned out to be a bad fuel pump.

[kev2809]

hoping this is the fix...just picked up a fuel pump from autozone, ill post up when im done...

*sighs*