mikez71
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He said he had no drop to the ground strap (block side), but does on the starter case. ? If I'm reading right..
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2008 Escalade - rapid clicking no start
- Thread starter Mordechai
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yeah I was a bit confused with that too. unless where it mounts to the block is very rusty from salty roads between the starter and the block. I don't think I've ever seen a starter not make a good ground to the block. but I have never had to deal with road salt.
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Mordechai
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UPDATE! I hooked a 1 gauge jumper cable from the battery ground to the firewall ground and it started right up. I then disconnected it and it's constantly starting normally now but I still have about 1.25v of voltage drop at the firewall ground when starting. I'm thinking of adding a ground cable directly from the battery to the firewall. Is that a good idea or no? Thank you
Before adding anything I'd probably first replace the engine-to-body ground with a new cable (rear of left head to the firewall). I'd also remove and clean the battery ground at the block, wherever that is on yours.
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Mordechai
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I already added a new oem ground strap from firewall to the head but didn't make a difference. Added it to a different location and doubled it up with factory old ground as people seem to recommend around here. And there's no direct to block ground that I know of on these.
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Mordechai
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Or maybe adding a ground strap from firewall to alt/power steering bracket? I know some of em came with that.
Is the new one connected to an exhaust manifold bolt?
your main battery ground should go here on the passenger side front end of the head, there will be a smaller lead off of the same cable that feeds down to the top of the frame on the passenger side part way up under the radiator support.
I personally also added a large ground from the alternator bracket to the frame on the drivers side
voltage drop to the starter "typically" indicates a bad starter cable, just food for thought but if a ground fixes it then great found the problem.
I was thinking ground for the starter going thru the fire wall might not be great. sounds like the starter is getting it's ground from that small wire off the terminal to bumper ground, thru the body and back to the starter. instead of from the thick ground from battery directly to block.
