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Old 12-30-2020, 11:23 AM
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jguard68
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Default 1985 No Start Issue

So, I'm having a no start issue on my 85. I had been running just fine, no issues other than the hard start issue. It started one morning just fine and then died. Hasn't started since, never ran rough or anything. Here's what we do know:
It started when spraying starting fluid in the TB and ran for a few seconds, not rough
I have spark
I have fuel pressure
The injectors are pulsing
The injectors are all reading 14 ohms
The fuses are good
I don't detect gas in the oil
When I pulled the new plugs to check they were soot covered and fuel soaked
Plugs changed, no start, but not fuel soaked after cranking attempts
They only things I have done recently was to put a can of Royal Purple fuel additive on the last fill up and Royal Purple engine oil
What else can be checked? I'll probably have it towed to a shop later this week because I don't know what else to do. Your help and guidance is greatly appreciated.




Last edited by jguard68; 12-30-2020 at 11:26 AM.
Old 12-30-2020, 12:50 PM
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banditt1979
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Are you sure you didnt get a tank full of water? I had an issue where my car would run but if you gave it any throttle it would sputter other than that ran fine. Pumped out the 5 gallons and most of it was water.
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Old 12-30-2020, 02:08 PM
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Originally Posted by banditt1979
Are you sure you didnt get a tank full of water? I had an issue where my car would run but if you gave it any throttle it would sputter other than that ran fine. Pumped out the 5 gallons and most of it was water.
I don't see how but anything's possible at this point....
Old 12-30-2020, 04:10 PM
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FostersPerformance
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If you used good fuel cleaner it might have dislodged some debris and plugged fuel filter. Those black specs look like carbon that the cleaner broke up as well.
If it ran on starting fluid then you know your problem should be fuel related. Look at filter.
Also these old cars are not meant for todays alcohol. Look at your rubber lines as well for hard/soft/brittle conditions. But unless you remove one and dissect it you won't know.
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Old 12-30-2020, 04:14 PM
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Originally Posted by FostersPerformance
If you used good fuel cleaner it might have dislodged some debris and plugged fuel filter. Those black specs look like carbon that the cleaner broke up as well.
If it ran on starting fluid then you know your problem should be fuel related. Look at filter.
Also these old cars are not meant for todays alcohol. Look at your rubber lines as well for hard/soft/brittle conditions. But unless you remove one and dissect it you won't know.
Thanks, yeah maybe royal purple works too good?? Anyway, I appreciate the input, and I will check it out.
Old 12-30-2020, 05:30 PM
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olrusty
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one question. Timing ?
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Old 12-30-2020, 05:53 PM
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Originally Posted by olrusty
one question. Timing ?
Would make sense but it was set a few weeks ago when I replaced the distributor.
Old 12-30-2020, 07:08 PM
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Originally Posted by ihatebarkingdogs
Does the Service Engine Soon light come on with key in RUN? (It must, or it won't start).

I like the suggestions that there's something going on with the "fuel" in the tank. Possibly water, or a fuel additive. Those plugs have junk all over them. If the SES light is on, and it will start on ether through the throttle body, but not stay running, I'd siphon the fuel tank dry, and put 5 gal of fresh fuel in it.

85s with a stock calibration need a functioning Cold Start Injector to first-start cold. By "cold", anything below about 75deg F. The CRANK fuse is for the CSI. Easy to check.
Yes, I will do the easy stuff first, it's being towed to my friend's garage tomorrow so I will start with draining the tank, fuel filter change. I'll check that fuse as well. Thanks for the reply.
Old 12-31-2020, 04:38 AM
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ls777z
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The distributor was replaced? Did you install a new one or used? Just thinking that a used one might have spark but not enough to ignite the gas....which looks like crap...
Old 12-31-2020, 06:34 AM
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Originally Posted by ls777z
The distributor was replaced? Did you install a new one or used? Just thinking that a used one might have spark but not enough to ignite the gas....which looks like crap...
No, I meant to say I replaced the cap, rotor, module, and coil. Not the whole distributor.
Old 12-31-2020, 02:35 PM
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I drained the fuel tank, put fresh gas in, replaced the fuel filter, still will not fire. The plugs are still fuel soaked but I'm getting spark. All I know to do now is throw parts at it. I had a thought, what little I do know about these engines, one thing could cause this could be the coolant sensor? If it's not working or bad won't it confuse the ECM?

Last edited by jguard68; 12-31-2020 at 02:36 PM.
Old 12-31-2020, 04:14 PM
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It would run. Maybe not the smoothest...
Old 12-31-2020, 07:18 PM
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Originally Posted by ihatebarkingdogs
Pull the vacuum line off the fuel pressure regulator. Is there liquid fuel in it? If = YES, replace the fuel pressure regulator.
I didn't notice any fuel in the FPR. However, when I removed the fuel rail, I suspect it was full of water, if that indeed what those white globs are.


Old 01-08-2021, 11:16 AM
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I found a lot of water in the fuel system. Turns out the gasket under the sending unit failed to seal and water got in the tank. Drained the tanked, cleared the lines, ordered new injectors. Hope to have it back up and running this weekend.

Old 01-08-2021, 02:20 PM
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Check the drain tube near the gas cap. Those clog at times and water gets in that way too.

Gary
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Old 01-08-2021, 06:26 PM
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banditt1979
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Same thing happened to me, probably due to all but 4 bolts broke off so when I resealed it I used something called "Hi-Tack" brushed it on the sending unit and tank and hasn't been a problem since.

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