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Tiny
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  • 1987 CHEVROLET EL CAMINO
  • 76,000 MILES
4.3l v6 how to check the timing and where is the tan with the black strip wire located I looked all over and can't seem to see it.
Sunday, March 24th, 2013 AT 7:09 PM

15 Replies

Tiny
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Jump the upper 2 terminals in the aldl connector. It will put it in base timing.

The 2 on the top row all the way to the right

Roy
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Sunday, March 24th, 2013 AT 7:11 PM
Tiny
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I try that but when I was setting it the rpm started t raise up as if the iac was opening and then it started to over heat I just got done doing the head gaskets on it. Could it be I have the valve lash wrong I was told a long time ago when the valve is in the closed position you turn the nut and the push rod until it just about stops turning and the a 1/4 turn after that it also acts like it is miss firing too
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Sunday, March 24th, 2013 AT 7:20 PM
Tiny
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As the timing goes advanced, the idle will raise up. It has no bearing on the overheat. That could be the thermostat. Low coolant or something else.

Did you have heads checked for cracks? Common for cracking.

Your valve settings is exactly the way I set all of mine, good job

Roy
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Sunday, March 24th, 2013 AT 7:23 PM
Tiny
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Okay thanks yes I had the heads checked out and had a valve job done on them. It just seems like it it is running at a very high idle
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Sunday, March 24th, 2013 AT 7:27 PM
Tiny
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There is a adjustment for the throttle on the tbi unit. It has a cap that you remove and use a 25 torx, I believe as it has been a while since I did one, and you can lower the idle about 150-200 rpm

Roy
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Sunday, March 24th, 2013 AT 7:30 PM
Tiny
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Okay i'll give that a try by the way it does not have the thermostat in it I was think it was stuck and when I when to look there was none there. I am also going to check the compression too it also might have a bad plug too I hate autolite plugs they suck.I am an ngk man
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Sunday, March 24th, 2013 AT 7:37 PM
Tiny
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Get a thermostat in there asap. It is required to have one and needs one or you will do damage to the back of the motor.

Good reason the head gaskets blowing for that alone

Roy
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Sunday, March 24th, 2013 AT 7:39 PM
Tiny
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Yea I know I think that is why it blow the first time will do first thing.
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Sunday, March 24th, 2013 AT 7:47 PM
Tiny
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Good luck

Roy
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Sunday, March 24th, 2013 AT 7:48 PM
Tiny
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Okay i'll keep you informed
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Sunday, March 24th, 2013 AT 7:50 PM
Tiny
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We will be here
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Sunday, March 24th, 2013 AT 7:51 PM
Tiny
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Okay I put in the thermostat changed the wires and plugs and the iac and the distributor the cars starts but it runs rich and code 45 I check the map sensor and it seem to be working I check for vacuum leaks and did not find any and the idle is not steady after a little while the car just stalls but starts right back up what am I missing
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Saturday, March 30th, 2013 AT 1:49 PM
Tiny
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What are the crosscounts on the o2 sensor?

Roy
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Saturday, March 30th, 2013 AT 2:22 PM
Tiny
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I don't have an obd 1 scanner so I don't no
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Saturday, March 30th, 2013 AT 2:26 PM
Tiny
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Going to be difficult to diag this without a scan tool. You need to monitor readings

Roy
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Saturday, March 30th, 2013 AT 2:33 PM

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