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Old 02-21-2007, 11:03 AM   #1
jor
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Join Date: Feb 2007
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Timing an 87 TBI 5.7L

87 Suburban 350 TBI
I posted this question in Electrical but I see that group isn't real active so I'll give it a try here (hope this cross posting isn't a fatal error). Anyhow, I'm trying to time this Suburban but I can't locate the EST bypass wire. I've looked all around the distributor but can't find any brown with a black strip wire. Thanks.
jor
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Old 02-21-2007, 11:16 AM   #2
ChevyTech
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Re: Timing an 87 TBI 5.7L

Look by the brake booster.
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Old 02-21-2007, 12:47 PM   #3
jor
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Re: Timing an 87 TBI 5.7L

I'll do that and post back. Thanks.
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Old 02-21-2007, 02:41 PM   #4
jor
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Re: Timing an 87 TBI 5.7L

That's where it was, chevytech, right under the brake booster. It's a tan wire with a black stripe just as described in the shop manual. Mine was taped up right under the loom and I didn't see it. Now that I've got this thing timed, I'll move on to more diagnostics and see if I can get it running right. Thanks for the tip.
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Old 02-21-2007, 03:45 PM   #5
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Re: Timing an 87 TBI 5.7L

You’re welcome.

Glad I could help.
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