where is knock sensor? and ESC module?
Is knock sensor opposite my water coolant temp sensor? and is the ESC behind the bread box passenger side?
I'm getting a ESC code and car is running like crap, but was perfectly fine a few weeks ago. '86 L98 |
the knock sensor is down by the the starter, a little in front of it, threaded into the block just above the oil pan, it has a 1 pin connector and its round, kinda hard to see.. not sure on the esc, I'd havta dig a manual out.. my car was kinda lacking parts when I got it..
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Originally Posted by rithsleeper
(Post 1569243146)
Is knock sensor opposite my water coolant temp sensor? and is the ESC behind the bread box passenger side?
I'm getting a ESC code and car is running like crap, but was perfectly fine a few weeks ago. '86 L98 It's under the hood, passenger side, near the firewall, mounted behind the front tire. A little rearward of the hood latch. About the size of half a pack of cigarettes. Hard for me to describe where it's mounted. Jake West Point ROCKS! |
ESC is mounted just below the HCAC blower motor.Faces outward, may be partly covered by the passenger "gill".
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Originally Posted by RPD_Vette84
(Post 1569243808)
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Originally Posted by Muffin
(Post 1569244143)
ESC is mounted just below the HCAC blower motor.Faces outward, may be partly covered by the passenger "gill".
Jake |
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Originally Posted by floridamale
(Post 1569244525)
Jake West Point ROCKS! |
350ci.
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great pic showin the knock sensor. Is that aluminum heads AND block?!?! haha jk
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Originally Posted by joshwilson3
(Post 1569277697)
And can the knock sensor be removed without lifting the car? If you have an oil cooler, I dont think there are any drain plugs. |
The knock sensor is used for the drain plug passenger side if you remove it coolant will flow from the hole, There should be a fitting with a bolt on drivers side
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When you go to remove the knock sensor, take care you don't break the plastic nipple (acoustic coupler) thingie that surrounds the sensor electrode. One slip of your box-ended wrench and BLOOP! It's done for.
You can use a pair of vice clamp to get a good bite on the circular part of the sensor to coax it out if need be. Be sure and re-torque the sensor to FSM specs. since it needs to be adequately installed to listen for spark knock. I believe it's 13 or 15 lbs. but someone who knows for sure chime in. |
To drain the coolant from the block, I've used the Knock Sensor on the passenger side and the oil coolant fitting on the driver's side. But that was on the L98 and 400 blocks.
I haven't had to drain my LT1 block yet, but if I do, I'll look for the knock sensors and/or screw in plugs. Jake West Point ROCKS! |
Originally Posted by joshwilson3
(Post 1569277697)
And can the knock sensor be removed without lifting the car?
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Originally Posted by joshwilson3
(Post 1569290741)
Is that inch or foot lbs.?
Oh, and I do have an oil cooler on mine. |
Yes, the torque reading for the knock sensor is important to get right. I always torque mine using a torque wrench.
Jake |
Originally Posted by joshwilson3
(Post 1569301635)
What is the torque spec?
It also calls for thread sealer, such teflon tape, on the sensor threads. GM changed the tape recommendation in later year Vettes, but I don't recall which year it was changed. Jake West Point ROCKS! |
Originally Posted by joshwilson3
(Post 1569301357)
You don't even have to use a torque wrench to install head bolts, but it would probably be a good idea.
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