98 ECM challenge
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1st Gear
Joined: Jan 2025
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98 ECM challenge
Hi:
For years I've had challenges with electrical gremlins in my 1998 C5. After paying $1,000 in diagnostic services I was informed my ECM was misbehaving. I found a vendor which promised to rebuild it to my car's VIN specs for $350.00 (Module Experts). After a 2 week wait I received the ECM back via mail and of course assumed it had been repaired. (No notification, only the ECM) The ECM was reinstalled and the car seemed fixed. After a week the battery became low and I was told the prior problem had destroyed the batter so I purchased a new one. Then the new battery went flat. Hiring a new mechanic I paid an additional $1,169 to determine the source of a parasitic draw and have an alarm resistor replaced after dash disassembled. The result, bad ECM. I called Module Experts and was informed they couldn't fix it and would try and refund my $350? Total RAGE. Their incompetence cost me an unnecessary $1,000.
Any advice on a way to fix or obtain a working ECM?
Thank you
For years I've had challenges with electrical gremlins in my 1998 C5. After paying $1,000 in diagnostic services I was informed my ECM was misbehaving. I found a vendor which promised to rebuild it to my car's VIN specs for $350.00 (Module Experts). After a 2 week wait I received the ECM back via mail and of course assumed it had been repaired. (No notification, only the ECM) The ECM was reinstalled and the car seemed fixed. After a week the battery became low and I was told the prior problem had destroyed the batter so I purchased a new one. Then the new battery went flat. Hiring a new mechanic I paid an additional $1,169 to determine the source of a parasitic draw and have an alarm resistor replaced after dash disassembled. The result, bad ECM. I called Module Experts and was informed they couldn't fix it and would try and refund my $350? Total RAGE. Their incompetence cost me an unnecessary $1,000.
Any advice on a way to fix or obtain a working ECM?
Thank you
Tech Contributor
Joined: Jan 2007
Posts: 19,388
Likes: 1,134
From: Dyer, IN
Hi:
For years I've had challenges with electrical gremlins in my 1998 C5. After paying $1,000 in diagnostic services I was informed my ECM was misbehaving. I found a vendor which promised to rebuild it to my car's VIN specs for $350.00 (Module Experts). After a 2 week wait I received the ECM back via mail and of course assumed it had been repaired. (No notification, only the ECM) The ECM was reinstalled and the car seemed fixed. After a week the battery became low and I was told the prior problem had destroyed the batter so I purchased a new one. Then the new battery went flat. Hiring a new mechanic I paid an additional $1,169 to determine the source of a parasitic draw and have an alarm resistor replaced after dash disassembled. The result, bad ECM. I called Module Experts and was informed they couldn't fix it and would try and refund my $350? Total RAGE. Their incompetence cost me an unnecessary $1,000.
Any advice on a way to fix or obtain a working ECM?
Thank you
For years I've had challenges with electrical gremlins in my 1998 C5. After paying $1,000 in diagnostic services I was informed my ECM was misbehaving. I found a vendor which promised to rebuild it to my car's VIN specs for $350.00 (Module Experts). After a 2 week wait I received the ECM back via mail and of course assumed it had been repaired. (No notification, only the ECM) The ECM was reinstalled and the car seemed fixed. After a week the battery became low and I was told the prior problem had destroyed the batter so I purchased a new one. Then the new battery went flat. Hiring a new mechanic I paid an additional $1,169 to determine the source of a parasitic draw and have an alarm resistor replaced after dash disassembled. The result, bad ECM. I called Module Experts and was informed they couldn't fix it and would try and refund my $350? Total RAGE. Their incompetence cost me an unnecessary $1,000.
Any advice on a way to fix or obtain a working ECM?
Thank you
