celtichammer1 Posted September 6, 2011 Share Posted September 6, 2011 94 Ls 400: tranny lost power the other day while driving (after about 60 miles). If the car is in park it will rev to about 4500 before cutting out(limiter?. I limped it home and changed the fuel filter but that didnt help. The next morning started it up and it drove fine for 20 miles or so then started the same thing but this time the a/c seemed to also be failing. Now its right off the bat acting up.Started it up and ran the rpm's up for a couple minutes(not straight) and the cats seemed to get hot really fast. Checked the trunk wires, nothing seems broken on the harness,under the hood things appear to be as they should, that is nothing obvious like vacuum lines or plugs loose.Recent repairs (6mo to present): timing belt,water pump,radiator,rt. rear wheel bearing assembly,plugs and wires,altenator,fuel filter.Any ideas or direction pointing would be greatly appreciated before i (gag) have to send it to the shop. Quote Link to comment Share on other sites More sharing options...
billydpowell Posted September 6, 2011 Share Posted September 6, 2011 seems like it would be throwing codes for you.. with the cats getting so hot, it is running rich, I dont think lean would heat them up, so check the mass air flow out, and your throttle body. surely you have checked your air filter..... check the tutorials on this link for some ideas. http://www.lexls.com/ Quote Link to comment Share on other sites More sharing options...
celtichammer1 Posted September 6, 2011 Author Share Posted September 6, 2011 ya air filter is good,throttle body could use a cleaning but not too bad. I will check the MAF. Thanks Quote Link to comment Share on other sites More sharing options...
steve2006 Posted September 6, 2011 Share Posted September 6, 2011 It sounds like the usual coil failure,it's normally the passenger side one that goes opposite and slightly below the battery tray. Also check the HT lead from it to the distributor cap as they can be damaged if not routed correctly. Quote Link to comment Share on other sites More sharing options...
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