Hello everyone, I just took a dreaded trip to the dealer for the common issue of ABS light/ no trac light on dashboard. Found out a few things, I have the following codes:
C1218: ABS Module and control unit bad: dealer estimate to fix: $2,818.32

Codes P0446, P1635, P1639: EGR Valve needs replaced and ECM needs replaced: DEALER ESTIMATE TO FIX: $1,580.00

Has anyone replaced their ABS module and pump, is it that hard of a job, and is it safe to buy used parts on this one. Also has anyone replaced their EGR valve and ECM? Whats the difference between ECM and PCM under the air filter? Do I have to have ECM reprogrammed once installed? Any insight to these questions would be greatly appreciated because I want to keep my Monte but dont have 5 grand to dump on her right now, if i can fix myself a lot cheaper I will , THANKS!!

 

The ECM is the PCM. You may need to do a case relearn - now is a time to consider upgrading to a tuned PCM.

The ABS is just one box (at least on my '96 it was), doesn't seem like it'd be too hard to do.

For those prices, they owe you......favors to say the least. PCM = $150, ABS module maybe $300, EGR is probably around $200... I'd definitely take my car back and tell them to kick rocks. The No Traction light on the dash could be a wheel bearing going out too, just an FYI.

Best of luck to you.

 

You ask is it hard, how experienced are you. I would say get a garage that is equipped to do the ABS... as if something goes wrong it is on them and besides if the system requires bleeding then they can command the pump with their scanner. The vent valve and the EGR you can easily do and the short may just be in the EGR valve (99% of the time that is where it is) be sure to check the fuse also if your car has one, I have not looked it up to see.


PS. Here is a discount code for RockAuto (it says we can share)1915208516740481

 

Thanks a million FOR THE INFORMATION/ DISCOUNT CODE!!!
One more question, does my 2003 monte have a ecm or pcm, like can i just buy the tuned pcm off ZZP performance for 180 or is that different then a ECM?
Also my dealer claims BOTH the abs module AND pump are bad, does rock auto have the pump or where could I get one, thanks again!!

 

It has both ECM and PCM. Never used one of their units, maybe others can assist... Will at overkill performance may help you decide, drop him a email.
Your car has a DBC7 antilock brake system with traction control (NW9) option. The unit/units you are looking for are EBCM and BPMV
the EBCM I already gave you a part # for from rockauto
the BPMV (brake pressure modulator valve) I do not have a specific part # for but if you call any GM dealer with your VIN they can give you the part# for OEM and AC delco then you can search for your specific unit: Brake pressure modulator valve: Research Calibex - Seller Reviews, Ratings

 

yes you can buy the pcm from either ZZP or Will @overkill (he tuned mine and I love it) the dealer is a little expensive and you can get all that work done a LOT cheaper. The EGR valve is honestly one or two bolts and you can re use the gasket if it's in good shape, I think I picked a used one up at the wreckers for $20 in the spring and it was on and running in under 3 minutes. I would also look into a used ABS control unit, most wreckers offer a 30 - 90 day exchange policy if what they sell you doesn't work so it is definitely worth looking in to and will be again a LOT cheaper. My money would be on you needing new wheel bearings causing the traction light to come on, you can pick up a set of TIMKEN bearings on Ebay fairly cheap and change them yourself and it wouldn't hurt to replace them on your car regardless as they will go eventually so consider it preventive maintenance.