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6/30/17 9:39am - Original Message: 'Won't start'
Gonalot
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New London, WI - USA

Vette(s):
1989 C4 Medium Blue Metallic convertible

Joined: 6/28/2017
Posts: 2
I have a 1989 C4. The engine stopped suddenly 7 years ago. Being a mechanic for more than 50 years, I refused to take it to anyone else so I've tinkered each year when it's warm. There are no codes. I have replaced the plugs, wires, injectors, complete new distributor, fuel pressure diaphragm, EGR, computer and some of the sensors. The timing mark is aligned with the rotor pointing to the number one plug on the compression stroke. I replaced the MAF. Have placed numbers on the spark plug wires to ensure proper firing order. I have 40PSI fuel pressure. I checked the injector wires with a node. The engine has 133,000 miles on it. So I have spark, fuel, injector fire and timing alignment. I don't even get an attempt to start. The only thing I can think of is jumped timing?
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6/30/17 2:10pm - Reply: 'Re: Won't start'
Hot Rod Roy
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Mission Viejo, CA - USA

Vette(s):
Yellow '84 Coupe

Joined: 3/18/2015
Posts: 37
Hint:  If you've been throwing parts at this car for seven years, don't brag about being a mechanic.   Sorry to be so direct.

No compression test yet?   Your noid test says you have a pulse to your injectors, but do they give you any fuel?  Have you checked the resistance of each injector?  Are your plugs wet or dry after you try to start the engine?  Does the engine try to start if you give it a shot of starter fluid (ether)?

Disapprove

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7/13/17 8:15am - Reply: 'Re: Won't start'
Gonalot
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New London, WI - USA

Vette(s):
1989 C4 Medium Blue Metallic convertible

Joined: 6/28/2017
Posts: 2
I removed the MAF and squirted starting fluid into the intake manifold and the engine started. As I adjusted the timing and throttle, the exhaust pipes at the elbows turned red hot where they drop down and straighten out to go to the mufflers. By the time I noticed this, the car started on fire. With a great deal of stepping and fetching, I was able to put out the fire. However, the engine wiring harness, spark plub wires, top of the distributor and some of the fiberglass were destroyed. For now the car is on hold until I get it on the hoist and access the damage. Thanks for the help as it is the first time the car has run since July 2010.
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7/13/17 9:06pm - Reply: 'Re: Won't start'
Strats-N-Vettes
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Atchafalaya Basin, LA - USA

Vette(s):
Black 1979 L-82 Black 1996 LT1 Black 1999 Coupe

Joined: 3/20/2009
Posts: 412
damn...... ^^^ sorry to hear that. :(


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