Engine to body ground strap replacement
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Joined: Nov 2020
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From: Sintra
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Engine to body ground strap replacement
I have had electrical gremlins over the years, and have chased them in several different ways and frequently, things improved but then, occasionally they come back. The two specific gremlins are ABS/PSM lights coming on at warm idle and windows lowering on its own, car unlocking and interior lights turning on.
I won't bother going through everything I have done chasing these things but the fact is that I just measured the voltage drop from alternator to body ground and I got 0.471V which is excessive. Also, cold start, I only have around 13.5V at the battery and it creeps downwards. I also have an alternator regulator coming for good measure since the battery is also dead/dying and the voltage at the battery, engine running fluctuates. That's cheap and easy to replace.
Now, has anybody replaced their engine-to-body ground strap? If I remove the vacuum pump, oil filler neck and right intercooler hose, would I be able to get access to the strap's top nut to replace the thing or does this require an engine drop?
I won't bother going through everything I have done chasing these things but the fact is that I just measured the voltage drop from alternator to body ground and I got 0.471V which is excessive. Also, cold start, I only have around 13.5V at the battery and it creeps downwards. I also have an alternator regulator coming for good measure since the battery is also dead/dying and the voltage at the battery, engine running fluctuates. That's cheap and easy to replace.
Now, has anybody replaced their engine-to-body ground strap? If I remove the vacuum pump, oil filler neck and right intercooler hose, would I be able to get access to the strap's top nut to replace the thing or does this require an engine drop?
Registered User
Joined: Feb 2020
Posts: 10
Rep Power: 0
I have had electrical gremlins over the years, and have chased them in several different ways and frequently, things improved but then, occasionally they come back. The two specific gremlins are ABS/PSM lights coming on at warm idle and windows lowering on its own, car unlocking and interior lights turning on.
I won't bother going through everything I have done chasing these things but the fact is that I just measured the voltage drop from alternator to body ground and I got 0.471V which is excessive. Also, cold start, I only have around 13.5V at the battery and it creeps downwards. I also have an alternator regulator coming for good measure since the battery is also dead/dying and the voltage at the battery, engine running fluctuates. That's cheap and easy to replace.
Now, has anybody replaced their engine-to-body ground strap? If I remove the vacuum pump, oil filler neck and right intercooler hose, would I be able to get access to the strap's top nut to replace the thing or does this require an engine drop?
I won't bother going through everything I have done chasing these things but the fact is that I just measured the voltage drop from alternator to body ground and I got 0.471V which is excessive. Also, cold start, I only have around 13.5V at the battery and it creeps downwards. I also have an alternator regulator coming for good measure since the battery is also dead/dying and the voltage at the battery, engine running fluctuates. That's cheap and easy to replace.
Now, has anybody replaced their engine-to-body ground strap? If I remove the vacuum pump, oil filler neck and right intercooler hose, would I be able to get access to the strap's top nut to replace the thing or does this require an engine drop?
Id also just check the connection points and tighten/clean them where they meet the chassis.
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