C7 dies in middle of road - 2nd major problem
11-14-2013, 08:21 PM
#42
Melting Slicks
Dealer called and say they have opened up a case with GM. They want to start by replacing the starter - which doesn't really make sense to me, but he says that is what GM wants to do first (said something like it is drawing amps from the battery and it shouldn't be??). I'm no tech so I have to rely on them (and what I learn from the Forum).
Again, the problem just happened when I was driving down the road and slowing down for a light. The RPMs just went to zero and it died.
Again, the problem just happened when I was driving down the road and slowing down for a light. The RPMs just went to zero and it died.
Same thing happened to one of my vettes, was going about 45 and all of a sudden without any warning the car just died. Had to be towed and turned out it was the starter. Replaced the starter and never happened again. The starter suddenly started drawing so much power the battery and alternator were not able to keep it going.
Last edited by RJRSW; 11-14-2013 at 08:24 PM.
11-14-2013, 08:42 PM
#43
electrical short or grounding problem?
relative had a truck do just what yours did. had just filled up with gas. assumed it had water in the gas. would start but then stop and then nothing. took it to a mechanic, who scratched his head for a day. then i suggested that they take a look at the wiring. turns out some wiring in the body had worn thru and would ground out. made the whole care appear to be dead.
i experienced similar after working on a car and replacing the grounding wire to the ecu. it was loose. i would drive down the road and it would sputter and die just like a bad fuel pump or out of gas. when i was stopped it would start. as soon as the car started to move and vibrate, the wire would loose touch intermittently with the ecu. since i knew i had just worked on this i rewired it and it fixed the issue. if i hadnt experienced this myself i would still be scratching my head.
if the ecu isnt 'energized' i suspect the whole car would be dead, just like the battery was dead. nothing, nada.. or some systems might work but some, like the starter would not catch at all.
relative had a truck do just what yours did. had just filled up with gas. assumed it had water in the gas. would start but then stop and then nothing. took it to a mechanic, who scratched his head for a day. then i suggested that they take a look at the wiring. turns out some wiring in the body had worn thru and would ground out. made the whole care appear to be dead.
i experienced similar after working on a car and replacing the grounding wire to the ecu. it was loose. i would drive down the road and it would sputter and die just like a bad fuel pump or out of gas. when i was stopped it would start. as soon as the car started to move and vibrate, the wire would loose touch intermittently with the ecu. since i knew i had just worked on this i rewired it and it fixed the issue. if i hadnt experienced this myself i would still be scratching my head.
if the ecu isnt 'energized' i suspect the whole car would be dead, just like the battery was dead. nothing, nada.. or some systems might work but some, like the starter would not catch at all.
Last edited by tolnep; 11-14-2013 at 08:45 PM.
11-14-2013, 10:01 PM
#45
Le Mans Master
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OP - there are always 'new model issues', and it would appear you caught a few. It is never fun dealing with them and I wish no one had to. Hopefully this is a small issue, unrelated to the prior one, and they will have your car repaired in record time.
Keep the faith. Negativity just brings us down further - dismiss any you get on here, as coming from folks who's prunes haven't provided them relief yet.
Keep the faith. Negativity just brings us down further - dismiss any you get on here, as coming from folks who's prunes haven't provided them relief yet.
11-15-2013, 11:28 AM
#47
Instructor
I would ask the dealer to also check all the Major ground points in the car. Could be a ground was not tiight during the build process and is causing electrical issues. Even after replacing the starter ask them to check all the grounds, good basic trouble shooting. The dealers only want to look for codes and act based on the codes generated.
Need to get back to some basic problem determination and trouble shooting.
Need to get back to some basic problem determination and trouble shooting.
11-15-2013, 11:58 AM
#48
Pro
Just had the same or similar problem with my C6 Z, dying, not starting. Ended up with wiring harness not plugged in good and locked together at the Fuse Block. Ended up burning up Fuse Block as well as connectors and terminals all had to be replaced to correct. Took 3 trips to dealer with 5 days in shop to correct.
11-15-2013, 12:01 PM
#49
Team Owner
Fuel pump perhaps?
11-15-2013, 02:40 PM
#50
Burning Brakes
Sounds like the solenoid welded the tips when the bat was going away. A new starter will certainly fix that and so would a good hit with a hammer sometimes. Sounds like the fuel delivery to me is the start of it all. Most of what has been mentioned above!
11-15-2013, 04:11 PM
#51
Instructor
Thread Starter
Well, the speculation can stop. I just heard from dealer - worst news possible - they need to replace the engine. I am devastated.
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
11-15-2013, 04:15 PM
#52
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Well, the speculation can stop. I just heard from dealer - worst news possible - they need to replace the engine. I am devastated.
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
Sorry to hear the news. Good luck, hopefully it will be on the road again soon.
11-15-2013, 04:16 PM
#53
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At least you don't have to pay for it
11-15-2013, 04:17 PM
#55
Safety Car
Well, the speculation can stop. I just heard from dealer - worst news possible - they need to replace the engine. I am devastated.
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
Would they consider giving you a new car?
I don't think I would be happy with a new engine so early. How many miles do you have on it? If I remember, not very many at all.
11-15-2013, 04:18 PM
#56
Melting Slicks
Any estimate on when you can get your Vette back?
11-15-2013, 05:07 PM
#59
Melting Slicks
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Well, the speculation can stop. I just heard from dealer - worst news possible - they need to replace the engine. I am devastated.
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
Apparently they have been talking with GM and it has something to do with when the fuel sending unit was replaced. Because the driveline had to be removed to do that, upon reassembly the torque rod (or torque stick) needs to be aligned and/or torqued perfectly, otherwise it causes a problem with the thrush washer which apparently can then disintegrate and cause the crankshaft to have too much movement or something along those lines. At the end of the day all I know is that they need to replace my engine. I truly cannot believe this.
(I also spoke with the owner of a C7 in Colorado who also had his fuel sending unit replaced and then his car died - - he as been told the same thing - a new engine is required. This is unbelievable to me).
