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Good place to buy an ECM/PCM?
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08-13-2006, 02:22 PM
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#1
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Registered User
Join Date: Jun 2006
Location: MA, USA
Posts: 831
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Good place to buy an ECM/PCM?
My ZJ started going through the clicking routine a while back, and everything else checks out, so it's time for a new PCM. Where's a good place to buy one? Price, warranty, etc. Most of the ones I've seen so far have been "reconditioned" just by resoldering connections, but given the appearance of some of the components in mine after 12 years I'd rather buy new.
Anyone?
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08-13-2006, 04:19 PM
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#2
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Registered User
Join Date: Aug 2006
Location: McKinney, TX
Posts: 60
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Sorry not to offer any advice, but what is this 'clicking' you are referring to?
It seems that every time I pull my negative battery cable after another round of trying to repair a stalling issue, the ZJ runs well for a fwe days, then back to the intermittent, at-random stalling. Today I flashed the PCM as instructed on another thread, and there seem to be a few good differences. It hasn't stalled again, yet, but I am leery.
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08-13-2006, 04:48 PM
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#3
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Former Mod
Join Date: Jan 2004
Location: NJ
Posts: 2,503
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To my knowledge there are no aftermarket Jeep PCMs. It's a Chrysler propietary product. You can get used ones and reconditioned ones. I believe Rock Auto has them. But a new one is a dealer item. There is a discount dealer on the web - can't seem to find the link right now but I'm sure someone will chime in.
Phil
__________________
'95 ZJ Ltd. White 4.0L
TW DC DS; ARB Bull Bar, F&R Air Lockers; Superior Axles; Warn Winch; 4.56 gears; ACOS, Addco F&R Sw Bar, JKS Discos, Rr Track Bar & Nerfs, 249>242 Swap, Stillen rotors+Kolak pads, 3 pc. Armor, RE 4.5 Kit + 2.5"BB, Adj. UCAs&LCAs, OME SS, Bilstein 5150s, 15x8 AR Diamond Backs, 33 Truxus MTs, K&N FIPK, RE 62mm TB, Perf. Distr. 4.0L Kit, Exhaust: 2.5" Kolak exhaust FM 70: Optima Yellow, Mean Grn Alt., PIAA 520s, 540s, Kevins Rack, & TB Conversion
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08-14-2006, 03:09 PM
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#4
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Registered User
Join Date: Jun 2006
Location: MA, USA
Posts: 831
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I'd settle for a rebuilt with a good warranty, too. This is driving me crazy and I just can't afford all the work my ZJ's going to need. Before the PCM thing popped up I was about to do a full suspension bushing job, front seals, shocks, and U-joints.
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08-14-2006, 05:32 PM
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#5
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Registered User
Join Date: May 2004
Location: Portland, OR
Posts: 868
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I bought a Mopar ECM, it was a rebuilt one with a one year warranty. I bought it through Nick, kolak@aol.com.
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Dan
Traded 8/9/07
[SIZE=1]Black 94 ZJ Laredo 4.0L 42RE/NP231 Command Trac
Sylvania Silverstars, Alpine CD Head Unit, Pioneer 3-Ways in the Doors, Blacked Out Grill, Kolak Exhaust, Clear Corners, Bilstein Shocks, Gas Tank Skid, Rear Hitch, Hitch Wiring, TC Skid, Hellwig RSB, Military FSB, Brembo Front Rotors, OME SS, B&M Supercooler, RE Tie Rod, Limited Power Leather Seats, 30x9.5 Toyo Open Country ATs, Optima Red Top
Next Mods: Upgrade Battery Cables, Sliders, Black Steelies, 3" Lift, Rear Locker, Bumper, HO Alternator, Winch, Driving Lights[/SIZE]
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08-14-2006, 05:44 PM
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#6
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Registered User
Join Date: Oct 2004
Location: West Jordan, Utah
Posts: 230
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my step father got one from here. plus they have a lifetime guarentee
http://www.ecudirect.com/index.asp
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2003 Jeep Rubicon
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08-14-2006, 09:14 PM
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#7
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Registered User
Join Date: Jun 2006
Location: MA, USA
Posts: 831
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I'll check those out. Anyone else? Any idea what a junkyard might charge for one? Figure I might roll the dice if it isn't too much.
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08-14-2006, 09:17 PM
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#8
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Registered User
Join Date: Feb 2006
Location: Indianapolis, Indiana
Posts: 465
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i have three in the parts box i keep under my bed all work good as new. i just pick them up where i can. whating for the day i will need one on my 94. what are the three big black numbers on the white tag on top. also spects on your jeep.
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94 Grand Cherokee, 4.6 stroker, 7 inch custom long arm kit, 33x12.50x15 Firestone destinations m/ts, flow-master 40 series, magnaflow high flow cat, locked front and rear, super axle kits front and rear, pioneer head unit, CB on channel 10, and a B&M built transmission, switched from a 231 to a 242, 2000 Grand Cherokee steering and knuckles and brakes, no abs, wildwood adjustable proportioning valve, and lots more
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08-15-2006, 03:34 PM
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#9
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Registered User
Join Date: Jun 2006
Location: MA, USA
Posts: 831
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The PCM is a 56028 300. '94 ZJ Laredo, 4.0, 42RE auto, NP231, federal emissions.
It doesn't have anti-theft as far as I know (how would I tell? It's not on the DC build sheet) but when I Google the PCM number it comes up as with AT.
Also coudn't find a *300 PCM on my 1994 Mopar parts CD.
Last edited by John in MA; 08-15-2006 at 03:48 PM..
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08-15-2006, 04:29 PM
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#10
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Registered User
Join Date: Mar 2004
Location: Ohio
Posts: 140
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Quote:
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Originally Posted by kdt1970
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You can read details in my other thread but I would definitely stay away from ECU Direct's R&R service (Remanufacturing & Refurbishing). I would suggest avoiding them altogether but at a bare minimum, don't do the R&R! You'll likely regret it and in the long run it is likely to cost you way more than just buying direct from Chrysler.
__________________
'99 Jeep Grand Cherokee Limited 4.7L
Up-Country, TrueTrac LSD, Tow Class IV
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08-15-2006, 05:07 PM
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#11
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Registered User
Join Date: Aug 2006
Location: IL
Posts: 372
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what kind of "clicking" were you getting? i get clicking when im in a turn sometimes, or especially when im turning slow and going over a bump like a curb. something to do with the cv joints or u joints or something in the steering
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08-15-2006, 05:38 PM
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#12
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Registered User
Join Date: Jun 2006
Location: MA, USA
Posts: 831
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Whenever the outside temperature shifts from warm to cool, the CEL doesn't come on for a minute when you first turn the key to "on", then ASD and fuel pump relays chatter for another minute. During the chattering the CEL flickers. The PCM loses power at some point in this sequence, too. After lots of clicking it finally initializes and starts working.
Past posts have talked about this, although not in great detail, and I recently asked about my problem on JU and got some answers.
My left U-joint just started binding up a couple days ago, but that's another problem.
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08-15-2006, 08:17 PM
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#13
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Registered User
Join Date: Feb 2006
Location: Indianapolis, Indiana
Posts: 465
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the big numbers in yours is 300 right? the 300 computers were switched at mid year to a 026 number. i have a good 026 computer if you want it just pm me. i have tested it for like three months when i had my computer fuel curve reprogramed. look in the door jamb by the latch to see if you see a plunger switch if there is on you have a factory alarm, no switch no alarm.
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94 Grand Cherokee, 4.6 stroker, 7 inch custom long arm kit, 33x12.50x15 Firestone destinations m/ts, flow-master 40 series, magnaflow high flow cat, locked front and rear, super axle kits front and rear, pioneer head unit, CB on channel 10, and a B&M built transmission, switched from a 231 to a 242, 2000 Grand Cherokee steering and knuckles and brakes, no abs, wildwood adjustable proportioning valve, and lots more
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08-19-2006, 08:05 AM
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#14
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Registered User
Join Date: Aug 2006
Location: McKinney, TX
Posts: 60
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Quote:
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Originally Posted by jeep946
the big numbers in yours is 300 right? the 300 computers were switched at mid year to a 026 number. i have a good 026 computer if you want it just pm me. i have tested it for like three months when i had my computer fuel curve reprogramed. look in the door jamb by the latch to see if you see a plunger switch if there is on you have a factory alarm, no switch no alarm.
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Do you happen to have a 406AB in that group? looks like mine is on the fritz. After everything I have replaced in the Heep, I started tapping on the computer case, and it would drop idle and spark in between the first and second connectors.
I think I have dropped about 700 dollars trying to figure this out.
The only thing I haven't replaced under the hood is the TPS, but it tested good.
I guess I'll be going for a boneyard special too.
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