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  #1  
Old 12-27-2011, 09:28 PM
stanb757 stanb757 is offline
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Default 2004 dodge ram hemi wont start

Hey guys I have a 2004 1500 ram with a 5.7 v8. Last night I got in the truck and started it, and as commonly happens, the oil pressure gauge did not come up. So I shut it off as usual, and went to restart it to get the OP to come up, and it hasn't started since. Put a obd II on it, came back originally with p0700 and p0562, so i changed the battery(original 2004 mopar battery!!) but no luck. Now the scanner returns no codes, just says it passed with no codes. It says my MIL is off(should be when running) but obviously it's not running. On the I/M function of the OBD all of the evap/egr stuff says not ready, although this may be because it's not running? Anyhow, my fuel pump is kicking on, battery is good, it's trying to start, it just won't turn over. I checked my fuses/relays, all seem ok. My check engine light flashes ten times and then stays solid if i cycle the ignition a few times( a buddy said it's a built in diagnostic??). Thanks for any input and i will provide more info if needed.
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Old 12-27-2011, 11:54 PM
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brad12kx brad12kx is offline
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I'm going to guess that you have a wire connection issue at the Instrument Cluster that is affecting the communications between modules, OR a bad Instrument Cluster (somewhat common issue in this generation).

Here is the Instrument Cluster repair manual and wiring diagrams.
http://www.ramforumz.com/attachment....3&d=1299130811
It's a bit of reading, but also has some great diagnostic info that can be done DIY.
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Old 12-28-2011, 11:52 AM
stanb757 stanb757 is offline
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i'm gonna check fuel pressure after work, and check for spark at the plugs. if it doesn't spark, where should i check first? thanks again? and could the cluster prevent the engine starting?
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Old 12-28-2011, 06:58 PM
stanb757 stanb757 is offline
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ok guys i hooked up my fuel pressure test kit to the test port located on the passenger side fuel rail, and flipped the ignition on. the pressure immediately shot up to 60, but rapidly fell once the ignition shut off. shouldn't it have held for at least a minute or so?
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Old 02-08-2012, 07:43 AM
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Default

I'm no mechanic but I work on my own truck and I've learned alot in the 8 yrs I've had my Dodge,
#1, P0700 is Transmission Control System Malfunction.
#2, P0562 is Engine Management System low voltage.
#3, cycling the key is a diagnostic procedure that determines wether or not your instrument cluster (gauges, mil indicator, warning indicators, ect,..) are functioning properly. 10 flashes = system passed.
#4, When you disconnected your battery, you erased all of your DTC codes. DTC codes are stored in your PCM (powertrain control module) when your PCM detects a driveability or emissions malfunction. If it wont start, it will not set DTC codes.
The PCM is the main computer in your truck and it monitors and controls all of the sensors, fuel, starting and charging, and most importantly, the voltage sent to all of those systems and their components for proper operation.
If the transmission was operating properly, and you didn't have starting and charging issues prior to the no start, you may want to take it to a dealer or certified mechanic and have the PCM checked. It's not often they go bad and is often over looked. Good luck.
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