lraffe1 Posted June 16, 2009 Share Posted June 16, 2009 had a 95 econ no start found a p1668 and injs did not buzz during test followed pin point test and found idm bad i then found it has had 4 idms in last 2 years. i also checked for icp pressure and okay, checked for crank signal and okay, checked fuel pressure and builds 15 psi while cranking. any ideas for idm failures like this Quote Link to comment Share on other sites More sharing options...
BrunoWilimek Posted June 16, 2009 Share Posted June 16, 2009 Any evidence of water getting in IDM? I replaced one years ago and found water entry due to location of IDM. I seem to remember a TSB about this issue on these units(if memory serves correctly). Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted June 16, 2009 Share Posted June 16, 2009 Correct, there is a TSB with a (silly) update kit that spaces the IDM out from the sheetmetal to prevent water from getting in. If you have had repeat IDM failures, I'd do a voltage drop on the IDM relay and make sure it (and the ground side circuit) doesn't have too much resistance. IIRC, there are two fat wires on the IDM and the rest are 16 ga. The fat ones are obviously power and ground, you can backprobe them for voltage supply/drop. If the VD is good, I'd resistance check the injector circuits to make sure they are correct, I use 2.77- 3.17 ohms acceptable resistance at the injector, add another ohm or so for the wiring. Disconnect all 4 VC connectors and inspect them, and see if the cust will pay to R&R the VC to check the UVC harnesses. Big pattern failures here, and they might ohm out OK "at this time". You know what I mean. If it truly has had 4 IDM's, somethings wrong. I'd hang a new IDM relay even if it checked out OK, as they are a high failure rate unit. I don't care for the TSB update and would make a raincoat for it from an inner tube. Good Luck! Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted June 17, 2009 Share Posted June 17, 2009 Correct me if I'm wrong but I thought we haven't seen as many van failures??? If this has had 4 failures, I'm with Bruce on this, but I would be looking to see if it has been upfitted or possibly been in a accident somewhere down the road also. Sounds like something outside is causing a repeat failure. Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted June 17, 2009 Share Posted June 17, 2009 Less failures (maybe) with 6.0 FICMs. (On a van the HP is turned down, and it's not mounted on the hot engine) Way more failures with 7.3 IDMs due to water intrusion. Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted June 17, 2009 Share Posted June 17, 2009 Correction noted...Thanks Bruce Quote Link to comment Share on other sites More sharing options...
lraffe1 Posted June 17, 2009 Author Share Posted June 17, 2009 Has any one herd of a aftermarket company that sells a reman idm. My sevive manger said herd there has a company out of TN that is selling them. I don't think I would use one if there availablr but is out of my hands. Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted June 17, 2009 Share Posted June 17, 2009 My opinion? I'd rather buy a used IDM from www.car-part.com for $100 than a reman one for three times that. I'm willing to bet the 'reman' IDMs are nothing more than spray can used ones...... Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted June 17, 2009 Share Posted June 17, 2009 Quote: I'm willing to bet the 'reman' IDMs are nothing more than spray can used ones...... We sell DTech(DIPACO) Reman IDM's they are reman and not just spray bombed. They come with a 12Month/50,000 mile warranty. Also covers the R&R for replacement. We have had pretty good luck with these. Quote Link to comment Share on other sites More sharing options...
lraffe1 Posted June 17, 2009 Author Share Posted June 17, 2009 what is the cost on the DTech remans and are u a dist or do buy from someonr else Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted June 17, 2009 Share Posted June 17, 2009 Check your P/M.... Quote Link to comment Share on other sites More sharing options...
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