Another SHO dead on the road

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abfm

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Jul 22, 2002
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I' ve been reading how common SHO's dieing on the road are and it just happened to my '93 MTX. It was surging, as if it were running on 5, then the sixth cylinder was cutting in for a small boost of power. It was also popping through the intake just in 1st gear pulling off and would drop to very low RPM's with the clutch in slowing for stops, the engine oil light would flicker, bring RPM's up a little and the light would go out. Occasionally the engine would die at stops.

I pulled the timing belt cover and checked timing. It was indexed right. I received a 214-CID circuit failure code. I changed the cam sensor. Still had the same problems. Then today it went dead right after starting. I turned the ignition key for a few seconds a second time and it turned over but would not start. The third time turning the key and it "clunked" and nothing. It was not the click you hear when there is a bad ground connection or the clunk of a starter throwing out and not engaging, bur something of a sound in between. I tried a fourth time and all I got was the dash lights as normal but absolutely no sound from the starter or solenoid. This is the first time it exhibited starting problems. Battery has a full charge, connections are good.

I towed it home and I pulled the codes again and received a 211-PIP circuit failure. So I suppose I will change the crank sensor next. On the starter not engaging I am stumped as electrical problems baffle me. My research through this site has shown a lot of people with these same problems and a lot of differing opinions on the solutions. Some say IAB cleaning will solve surging problems, popping through the intake could take re-timing or CID sensor replacement. Starter problems could be the solenoid, a ground, the clutch safety switch, the starter itself or ignition wiring.

Could you guys please throw some educated ideas my way on where to start (least trouble first) as I would like to get it to at least turn over first before changing the crank sensor. The crank sensor should not stop it from turning over should it? Where is the solenoid on second gen cars? On the 1st gen it was on the side of the engine compartment I did not look very hard, but on first look I could not find it. This seems to be a dominoe effect of components going south.

Thanks.
Andrew.

<small>[ July 22, 2002, 05:36 PM: Message edited by: abfm ]</small>
 

SHOfun 93

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GEEZ Andrew,
Being right there in Atlanta, you are literally minutes from some of the best SHO shops in the nation ( IPT, FPS). But on to your problem. When my crank, or CID sensor failed, it bucked TERRIBLY, but would turn over. It just sounded like the engine was getting ready to blow off the HEADS! But it did crank. Also the tach went dead when the car was running. I really don't know about the starter not engaging, possibly a bad ground or something? But I would start with the CID sensor, it is rignt on the rear bank of the valve covers, and can be changed in about 30 minutes tops. It is just a matter of removing the 2 5.5mm hex heads, unplugging it, and swapping them out. Start there.
 

projectSHO89

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The solenoid is on the starter.

It might be corroded or bad cables/connections causing the no-crank condition. If one of you major connections failed, it could also cause the car to quit running. It all depends on where that fault might be in the circuit.

Steve
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