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  • March 28, 2024, 09:43:24 AM

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Author Topic: car wont start ...has to be electrical HELP  (Read 3544 times)

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Offline JayRamb

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car wont start ...has to be electrical HELP
« on: August 04, 2015, 01:18:08 PM »
I overhauled the carb...the good.
I replaced the spark plug wires...the good.
I replaced the fuel pump...good.

I try to start the car and all it does is pop/backfire through the carb. Acts like the wires on distributor are in wrong order, but they aren't everything is lined up and in the right place. carb is getting gas, but not flooding out. fuel pressure is great. did a vacuum test on the new fuel pump. ICM is brand new and even hooked up another as a spare.  Stumped. Please help!!
Jayson H.
Best HWY Mileage of 87 Eagle:  26.2 MPG

Believer in AMSOIL & Seafoam
1987 Garnet Red Eagle Wagon: 70,500 miles
1967 Rambler Rebel 4 Door 290 V8 (original family car) Marina Aqua 142K miles
1985 Eagle Wagon in Autumn Brown 74,800 miles as my daily driver
SOLD 1984 Black Eagle Limited w/Tach & gauge cluster: 245,100 miles SOLD

Offline vangremlin

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Re: car wont start ...has to be electrical HELP
« Reply #1 on: August 04, 2015, 03:11:00 PM »
You're beyond my mechanic abilities.  When I hear about backfiring through the carb it sures sounds likes it timing related or mismatched spark plug wires to me.  But after that I don't know what to suggest. 

Good luck!
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1972 Gremlin X 304
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Offline eagleman

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Re: car wont start ...has to be electrical HELP
« Reply #2 on: August 04, 2015, 04:09:49 PM »
Believe I'd recheck your firing order. Sounds as though you might have one or two out of order or the timing is considerably off.
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Offline rmick

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Re: car wont start ...has to be electrical HELP
« Reply #3 on: August 04, 2015, 10:31:54 PM »
Did the timing chain jump a couple of teeth?
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Offline Draekon

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Re: car wont start ...has to be electrical HELP
« Reply #4 on: August 05, 2015, 01:06:37 AM »
Make sure your distributor isnt installed 180* off

Offline amchornet

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Re: car wont start ...has to be electrical HELP
« Reply #5 on: August 09, 2015, 08:32:32 AM »
what kind of ignition/distributor do you have? Remember all you need is spark fuel compression. Sounds like you have all 3. Even if everything all checks out and it still wont start spin the distributor 180 degrees and try it....what have you got to lose....just be sure to turn it back when done...lol
Joe Washburn
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Offline JayRamb

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Re: car wont start ...has to be electrical HELP
« Reply #6 on: August 09, 2015, 01:12:33 PM »
Now that it is starting wonderfully, I cannot accelerate. Put it in drive and dies. Is this spark advance in distributor? There is a new coil, it acts the same way as before. New distributor cover, new wires, plugs, new fuel pump. Accelerator pump is operating as it should in carb. Is there anything to do with the transmission like a vacuum advance or switch? Could that be it?
Jayson H.
Best HWY Mileage of 87 Eagle:  26.2 MPG

Believer in AMSOIL & Seafoam
1987 Garnet Red Eagle Wagon: 70,500 miles
1967 Rambler Rebel 4 Door 290 V8 (original family car) Marina Aqua 142K miles
1985 Eagle Wagon in Autumn Brown 74,800 miles as my daily driver
SOLD 1984 Black Eagle Limited w/Tach & gauge cluster: 245,100 miles SOLD

Offline eaglebeek

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Re: car wont start ...has to be electrical HELP
« Reply #7 on: August 09, 2015, 06:03:34 PM »
There is no vacuum control on the original 998 automatic transmission. Shift modulation is through the throttle lever.

You haven't said if your transmission has a lockup torque converter. I'm assuming it does, and I wonder if it's stuck in lock. Easy way to test: raise  the rear end so the wheels are off the ground. Be sure the transfer case is not in 4-wheel drive. With the wheels free to rotate, start the engine and put it in gear.  Then try to stop wheel rotation  by stepping on the brakes. If it goes into gear without stalling and then stalls/stops when you apply the brakes your torque converter may be stuck in lock. :eagle:
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"The society which scorns excellence in plumbing as a humble activity and tolerates shoddiness in philosophy because it is an exalted activity will have neither good plumbing nor good philosophy: neither its pipes nor its theories will hold water."--John W. Gardner, in "Excellence: Can We Be Equal and Excellent Too?" (1961)
 
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Offline carnuck

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Re: car wont start ...has to be electrical HELP
« Reply #8 on: August 29, 2015, 11:30:23 PM »
Sounds like the ECM Test Bypass needs doing.
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