2006 300C SRT8 no start (won't crank)?
#3146624
05/24/23 02:10 PM
05/24/23 02:10 PM
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Joined: Jan 2003
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Cheeto
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Bought wrecked 2006 300c SRT8 as an engine donor. After some precision bodywork with an excavator and a 5/16" chain to get the electric fan off the pulleys I am trying to test-fire the engine to no avail. Have solid power, fuel pump primes (by sound) but I have a "no-crank" situation. No click, no clunk, no nothing when turning the key to start. Brake pedal goes slowly to the floor and there is significant damage to the left front suspension (broken a-arm, shock, steering rack etc.).
I suspect a brake line is cut/broken and the switch is pressure activated so the computer will not allow it to crank. Am I correct? If so, where is the switch so I can bypass it?
Also, where is the oil filter located on a 6.1? It is suspiciously low on oil and I suspect the filter may have been impacted. What I can see of the undercarriage so far does NOT point to oil pan damage. The engine compartment is ridiculously tight on these even without the "co-mingling of parts" from the accident. Thanks all!
Last edited by Cheeto; 06/01/23 12:43 PM.
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3146643
05/24/23 04:03 PM
05/24/23 04:03 PM
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Joined: Jan 2007
Posts: 10,176 A Red State
SNK-EYZ
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The oil filter is located at the lower right front of the engine (like all gen3 Hemi's).
I've never heard of any switch requiring brake line pressure to start the engine. It does have to be in neutral or park.
Kayse can't keep up at all now. lol
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Sniper]
#3146661
05/24/23 07:22 PM
05/24/23 07:22 PM
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Joined: Jan 2011
Posts: 15,947 Central Florida
larrymopar360
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I had an '06 Charger SRT8. Great car, I loved that 6.1. Anyway I don't think it's brakes either. Maybe alarm as mentioned. I can only imagine what sensors may have been damaged too though, causing no start. Crank position sensor maybe. That is at right rear of block though but who knows with the moving around of the vehicle. Can you even access shifter and move it to different positions to see if it's misaligned?
Facts are stubborn things.
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Re: 2006 300C SRT8 no start...brake switch?
[Re: larrymopar360]
#3146672
05/24/23 08:09 PM
05/24/23 08:09 PM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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Thanks for the speedy responses folks! I was likely confusing "hold brake to start" with "hold brake to put in gear" yesterday...it was a hectic day. The shifter might be an option. I recall the cover plate being loose so maybe it's been fiddled with. I was finally able to shift it through the "gates" but the airbag was covering the gauges so I didn't see if the indicator was changing. I'll also pull the codes and see what's up. I've bought dozens of wrecks like this and never had this type of issue with no-crank. I would think a crank/cam position sensor would allow it to crank but not fire. Am I wrong? Now for a little rant (cover your ears kids)....whoever thought those tin lug nut covers were a good idea should have them crimped onto VERY sensitive body parts and then spend the next calendar year travelling around the country with the factory supplied lug wrench to remove them from people's vehicles. ![rant rant](/ubbthreads/images/graemlins/custom/rant.gif)
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3146689
05/24/23 08:58 PM
05/24/23 08:58 PM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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Codes as follows: P0073 ambient air temp U0121 (multiple offenses) U0002 (maybe also multiple) U1120
After multiple attempts everything but the U1120 was able to be deleted. My reader only says that: U=Network 0 in the first slot=generic 1 in the first slot= manufacturer specific 1 in the second slot= fuel and air metering 3rd and 4th slots identify malfunctioning circuit.
It's really only useful for P0xxx codes.
There does not appear to be an issue related to the alarm. There are no blinking lights/clicking when I get in, everything else works and the key/fob will lock/unlock the doors no problem.
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Sniper]
#3146969
05/26/23 06:41 PM
05/26/23 06:41 PM
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Joined: Jan 2011
Posts: 15,947 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
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The U0121 lost comm with ABS would at least turn over if not start. Not sure about the CANBus
Facts are stubborn things.
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Re: 2006 300C SRT8 no start...brake switch?
[Re: A12]
#3147978
06/01/23 12:45 PM
06/01/23 12:45 PM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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Little bump up for the folks now recovered from the long weekend.
What's the little silver box attached to the side of the TIPM do? It's got a decent dent in it.
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3147993
06/01/23 01:45 PM
06/01/23 01:45 PM
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Joined: Jan 2003
Posts: 21,548 N.E. OHIO, USA
A12
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What's the little silver box attached to the side of the TIPM do? It's got a decent dent in it. THIS?
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3148082
06/01/23 11:59 PM
06/01/23 11:59 PM
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Joined: Jan 2007
Posts: 10,176 A Red State
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If it's what I think you're talking about it's a front control module.
Technically it's not a fuse block anymore, last thing I knew they were calling it a Totally Integrated Power Module aka TIPM or Integrated Power Module aka IPM.
Everything is a computer anymore. lol
Usually the thing on the side that has an aluminum cover is the front module (controls headlights among other things).
I've sold a few of them when I parted out some Ram trucks from that era to people who were having headlight problems.
Kayse can't keep up at all now. lol
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Re: 2006 300C SRT8 no start...brake switch?
[Re: dvw]
#3148306
06/02/23 08:33 PM
06/02/23 08:33 PM
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Posts: 1,970 ID/MT
Cheeto
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Has the ABS unit been impacted? It needs to see battery power, ignition, ground and BUS communication. If any of those circuits or the unit itself is damaged the car will not crank. Doug You may be on to something here. Pedal goes to the floor and I seem to recall things being extra tight around the spaghetti of lines near the ABS. I'll look into this further.
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: dvw]
#3148704
06/04/23 08:58 PM
06/04/23 08:58 PM
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Cheeto
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dvw, would residual pressure in the braking system be a requirement? I was walking past the car today and gave it a quick once over. The flex line to the l/f caliper has a tear in it. There appears to be a switch in the system kind of between the l/f strut tower and the firewall (which are closer together now than from the factory ![bump bump](/ubbthreads/images/graemlins/custom/bump.gif) ) that may have issues too but I didn't have time for a thorough inspection.
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3155120
06/29/23 02:18 AM
06/29/23 02:18 AM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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Anybody else have input/suggestions?
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3155292
06/29/23 03:11 PM
06/29/23 03:11 PM
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Joined: Sep 2003
Posts: 19,659 north of coder
moparx
"Butt Crack Bob"
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as you mentioned the lf caliper flex line has a tear in it, in my opinion, it needs replaced. and if i were to replace one flex line [on any vehicle] i would replace them all, bleed the system, then go from there. just my opinion. your mileage will vary. ![beer beer](/ubbthreads/images/graemlins/custom/beer.gif)
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Re: 2006 300C SRT8 no start...brake switch?
[Re: moparx]
#3155332
06/29/23 06:04 PM
06/29/23 06:04 PM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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,,, if i were to replace one flex line [on any vehicle] i would replace them all, ,,, Even on a car whose sole purpose is to give up its engine for another project? ![wink wink](/ubbthreads/images/graemlins/custom/wink.gif) If indeed it is the brake line causing it not to start I will likely just clamp it off to allow the system to build pressure. Again, I just want to hear this engine run before investing time/money/effort into it.
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3155351
06/29/23 06:58 PM
06/29/23 06:58 PM
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Joined: Jan 2007
Posts: 10,176 A Red State
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I don't think that brake line pressure is the problem.
It's a wiring problem, but without actually working on the car themselves it's tough for people to tell you where the problem iles.
With it being wrecked there are so many places that there could be wiring damage.
It's just like any other old Mopar, it there is power at the starter (large hot lead) you should be able to feed power to the starter solenoid connection on the starter to make it crank over. Whether it would actually start with the key in the on position is a whole other story.
Kayse can't keep up at all now. lol
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Re: 2006 300C SRT8 no start...brake switch?
[Re: SNK-EYZ]
#3155415
06/29/23 09:29 PM
06/29/23 09:29 PM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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I don't think that brake line pressure is the problem.I was basing that off of previous advice but he hasn't followed up. without actually working on the car themselves it's tough for people to tell you where the problem iles.Completely agree. That's why I'm open to all suggestions. With it being wrecked there are so many places that there could be wiring damage.Again, I agree but everything else seems to work...well the broken headlights don't. ![grin grin](/ubbthreads/images/graemlins/custom/grin.gif) When I get more time to truly get after it I'll check voltage at the starter and try jumping the solenoid. The shift indicator in the dash moves according to shifter position. Is there more than one sensor involved there?
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: Cheeto]
#3155420
06/29/23 09:48 PM
06/29/23 09:48 PM
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Posts: 21,548 N.E. OHIO, USA
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The shift indicator in the dash moves according to shifter position. Is there more than one sensor involved there? Have you tried to start it in neutral ? Or just for grins in drive or all of the positions? Here is the neutral switch:
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Re: 2006 300C SRT8 no start...brake switch?
[Re: A12]
#3155446
06/29/23 11:33 PM
06/29/23 11:33 PM
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Joined: Jan 2003
Posts: 1,970 ID/MT
Cheeto
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90% certain I tried it in neutral. I'll add "try all gears" to the list for when I get back to it. Thank you. Is that switch mounted on the trans or the shifter?
Cheeto It's not perfect. It's not correct. It's not yours!
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Re: 2006 300C SRT8 no start...brake switch?
[Re: moparx]
#3155744
06/30/23 10:02 PM
06/30/23 10:02 PM
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Joined: Jan 2003
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Cheeto
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sorry Cheeto........... i forgot you are just trying to get this engine to run, then transplant. them dang spiders............... No worries, I had to go back and make sure I even said that way back in the beginning. ![scope scope](/ubbthreads/images/graemlins/custom/scope.gif) Excellent advice in a different scenario though. ![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)
Cheeto It's not perfect. It's not correct. It's not yours!
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