HELP!!! PSD WONT START
Elder User
Joined: Dec 2009
Posts: 864
Likes: 0
From: Fort Campbell, KY
Try shifting in to neutral and then starting?
If no go, I hate to say it but you need to find someone there that can pull the codes. If your SES light came on, there is some info in there... we need it to see what the PCM was seeing just be fore it went Tango Uniform
, (broke) Where are you located? Might be a member close that could lend a hand with that.
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Senior User
Joined: Jan 2006
Posts: 114
Likes: 0
ok no go in neutral...the ses light is on the battery light, and temp/oil light...gauges are on too...going to see if i can get a friends programmer to pull the codes....could this be possible glow plug relay? thanks guys
Elder User
Joined: Dec 2009
Posts: 864
Likes: 0
From: Fort Campbell, KY
So even if all the systems are a go, it will not start with out the PCM. We have to get your WTS light to start cycling again. (There is the possibility, how ever slight, that your WTS light has burned out.) Just something to keep in the back of your head. Keep us updated.
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Senior User
Joined: Jan 2006
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ok the battery gauge is up toward 18 then when i crank it goes down....doesn't even sounding like its trying...all of the fuses diodes and relays seem good did some swapping....anyway to actually test the relays and diodes....thanks guys...i hope this fight ends soon!!! i'm getting discouraged!!!
Elder User
Joined: Dec 2009
Posts: 864
Likes: 0
From: Fort Campbell, KY
ok the battery gauge is up toward 18 then when i crank it goes down....doesn't even sounding like its trying...all of the fuses diodes and relays seem good did some swapping....anyway to actually test the relays and diodes....thanks guys...i hope this fight ends soon!!! i'm getting discouraged!!!
, your in good hands... there is some real talent here! Now, sounds like your batteries are really TIERED. Give'm a good charge. Best to have one of the chargers that automatically steps down the amperage. Start in the 12-15 amp range, and let them get good and charged. BEFORE you charge the batteries though, check the acid levels. I know it's a PITA if you still have those crappy covers on the batteries from the factory. I always remove them because the impede normal maintenance. You might be surprised to find the levels are low, perhaps even exposing some of the plates... that's really bad. Anyway I've seen my share of batteries explode due to low acid while being charged, not good. Be sure and let us know if you feel that relay activate for the PCM as previously stated. And or if your WTS light starts coming on again.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Like previously stated if voltage drops below 10.5 while cranking it will not start. Just saying.
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Senior User
Joined: Jan 2006
Posts: 114
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lol thanks for the support....which relay #30? should i be able to feel it click or something? thanks
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Senior User
Joined: Jan 2006
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ok....just checked batteries ~13 before then while cranking one drops to 10.53 and other 10.2x should be enough right? Then borrowed a friend's scan tool....never would establish a good connection ....makes no sense to me...can't feel the relay click....
Postmaster
Joined: Dec 2008
Posts: 3,340
Likes: 2
Check to see if you are getting power to the fuel pump when you turn the key on. You only have about 20 seconds to test so may need a helper. Sounds like to me you need to do some troubleshooting through some wiring diagrams.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Upper left corner of this Power Distrbution diagram is the path to supply power to the PCM. With key on or in start power goes through under dash fuse #30 to the PCM Relay Diode to the PCM Relay winding to ground. If you can't feel the PCM relay operate it has to be a problem along that path.
