PCM
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PCM
I think my pcm has gone bad. My wait to start light won't come on an when I turn my key on I can't hear my fuel pump cut on anymore. My vacuum pump is also making a loud noise. Does anyone have an opinion?
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Thank you.
its a 2000, auto, 4x4, 179,000 miles. And I've checked all my fuses and even swap relays around. I had a chip in it an took it out to see if that was my problem but nothing changed. I unhooked the batteries before I did take it out. And when I hooked it back up the vacuum pump was making a loud noise.
its a 2000, auto, 4x4, 179,000 miles. And I've checked all my fuses and even swap relays around. I had a chip in it an took it out to see if that was my problem but nothing changed. I unhooked the batteries before I did take it out. And when I hooked it back up the vacuum pump was making a loud noise.
Cargo Master
Joined: Nov 2005
Posts: 2,767
Likes: 58
From: East Tawas, MI
Did this all start when u pulled the chip????
I would exam your pcm reinstall and make sure everythings snug down there.
Denny
I would exam your pcm reinstall and make sure everythings snug down there.
Denny
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Thanks Denny.
but no it started when I installed the regulated return system. But I'll check the connections
but no it started when I installed the regulated return system. But I'll check the connections
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Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
If it turns out that your PCM is in fact bad or damaged, contact SIA Electronics. I had problems with mine, found them on eBay. $170 to fix. I sent mine in, they looked at it, turns out they could not fix it. They returned the PCM, I figured I was out $170...6 days later I got a $159 REFUND from them! So for $11 they ran diagnostics AND return shipping.
Side note: Walmart sells a plastic case $19 that the PCM fits in, crush proof, waterproof and enough room for bubble wrap. I included my address in the case and they returned everything! Good luck!
Side note: Walmart sells a plastic case $19 that the PCM fits in, crush proof, waterproof and enough room for bubble wrap. I included my address in the case and they returned everything! Good luck!
Cargo Master
Joined: Mar 2006
Posts: 2,502
Likes: 2
From: Bend Oregon
I think its better than black jack odds that the fuel bowl heater wiring is shorted out. All this started when you installed the regulated return and fuel bowl delete....that's probably where the issue resides.
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