Question about 1985 Chevrolet Corvette

2 Answers

1985 corvette coupe very hard start

I just bought this car to find hard start crank and crank before it starts. I checked fuel pressure and its 41 pounds, and good spark at plugs. It seems like possible ECM not sending signal to injectors. If car is driven and shut off for about half hour it won't start just cranks with a jump because battery run down from to much cranking. about ten cranks for about six seconds each. Poor starter motor will cook soon. Fuel pressure taken at test port in rail. I don't know if a fuel regulator would do this. Please help.
Doug

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  • mystic2 Apr 14, 2009

    From mystic2

    You sent me an e-mail to the 1985 corvette hard start. I don't know how to attach back to what you sent me. You had asked if if will start with either and yes it will and die. Spray again for about two seconds direct into trottle body and it started. Runs a little rough. Thanks Doug

  • Jerry Koski
    Jerry Koski May 11, 2010

    can you tell me will it start if you shoot a little either in the air cleaner or fuel ? ..

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It is better to ask from a local auto wreckers. Some mechanical issues need a local mechanic advice. Adelaide Auto Wreckers Cash for Cars Adelaide Free Removal Service

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  • Chevrolet Master
  • 2,005 Answers

There is a series of two videos addressing a very similar problem with a 1989 Corvette, first one diagnosis, second one fix. Seems like this is a not unusual problem for these older Corvettes. Check out the links.
Chevy Corvette No Start When Hot The Diagnosis
Chevy Corvette No Start When Hot The Fix

Posted on May 10, 2017

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Posted on Jan 02, 2017

psds4
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SOURCE: 1997 Chev Cavalier hard starting

it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank

Posted on Sep 23, 2008

  • 24 Answers

SOURCE: Need to remove ECM out of my 1985 Corvette

Remove the glove compartment or glove compartment door ( if one peice assembly). They are typically located behind the glovebox.

Posted on Dec 01, 2008

  • 1 Answer

SOURCE: 2000 chevy blazer, truck cranks

Does your battery go dead?

Posted on Dec 18, 2008

  • 1596 Answers

SOURCE: 1992 Corvette won't start



Disconnect the + wire Coils Take #1 Spark Plug Out Get a helper Use Compression Guage if not Available, Just put your finger over the Spark Plug Hole, have help BUMP the Starter over till You can Feel The Compression at your finger you need #1 at TOP DEAD CENTER on its Compression STROKE Fine tune it by using a STRAW in the Plug Hole to feel the PISTON Move UP To VERY TOP Dead center----------------------------------This is Tricky but don't Loose these Instructions------- If you have the OPTI_SPARK Ignition System My Books show all about it but Nothing on the Timing "MARK" as this is the step I Stoped at Above.. Coil Pack Ignition Will Have a Timing MARK On the Lower Harmonic Balancer. Point Being if Mark is NOT on the Degree Indicator It has JUMPED TIMING<< Surly on a Coil Pack Ignition System BUT
-------- The Opti Spark system if there is NO Timing Mark to Go by I Would Suggest Breaking Down and Letting A DEALER Handle it Unless You Can RULE that it HAS JUMPED TIME------------------------------------------------------------------------I Truly Hope I've shed some Light on Your Delima and this Leads you to a Smooth running Chevy. PLEASE don't forget to Rate Me ------------------------------------P.S. The Opti - Spark System Has A BAD REPUTATION Just FYI Recall - Opti-Spark Distribtor, Stall/No Start, Code 16 Notes
9227chevy01
Number:
92C11
Section:
6E
Date:
Feb., 1992
Subject:
PRODUCT EMISSION CAMPAIGN 92C11 - Opti-SPARK DISTRIBUTOR
Model and Year:
1992 CHEVROLET CORVETTE W/ LT1 ENGINE
To:
All Chevrolet Dealers

Posted on Jan 16, 2009

mcgyver468
  • 710 Answers

SOURCE: 1985 Corvette Shuts off after heats up..

HAVE YOU CHECKED THE FUEL PUMP OR FUEL FILTER? IF YOU HAD TO CHANGE INJECTORS, MAYBE THEY WERE CLOGGED WITH IMPURITIES GETTING PASS THE FILTER? I HOPE THIS HELPS YOU FIND THE SOURCE OF THE PROBLEM. LET ME KNOW PLEASE. GOOD LUCK WITH YOUR BOW-TIE.

Posted on May 02, 2009

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1 Answer

1985 corvette cranks but won't start, fuel pressure good, oil is good also, it doesn't seem to be geeting any fuel. New fuel pump, filter & gas. Is there a security aystem problem?


Check to see if you have spark, if you do, and still it does not start, then you may think that fuel is not getting to it. At this point, use some starting fluid and spray it at the throttle opening. That should start it for a few seconds and give you the answer.
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WHAT OTHER SYMPTOMS ARE YOU HAVING HAVE YOU CHECKED YOU FUSES TO YOU CRANK FUEL PUMP INJECTORS ETC ARE YOU GETTING ANY CODES IF NOT CHECK COMPUTER

Feb 10, 2010 | 1985 Chevrolet Corvette

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The cam or crank sensor is going out when driving at high speeds. I would have those parts check, and have the fuel pressure check , fuel filter change to be on the safe side.

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My corvette doesnt want to start because theres no power going to the fuel pump fuse.


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I had the exact same problem with mine. After replacing nearly everything i took it to a shop today to learn that I had a bad wire on the back of the distributor and the new fuel pump i installed from autozone was faulty and not providing enough pressure.

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1985 corvette wont start


NEVER use either!! EVER! It burns very dry and can destroy a gas engine! Just give it a bit of gas down the intake.But keep the can away after each try! Far away! Not sure how you are getting 32v?? That can't be volts! Silly question, but is there fuel in the tank?? Have seen this before! It would be great to learn how this all started?? [or should i say stopped] lol Check the fuel line for a pin hole. It sounds like it is sucking air. Really need a bit more info. OK Frankster016

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poss. is fuel pressure reg. problem. put a guage on the test port and check press. should be above 35psi. see if it stays running when you spray choke cleaner in the pcv valve steadily while starting. if the engine stays running after a few seconds of running on choke cleaner then probably a bad fuel pump relay cause the oil pressure switch will keep the pump on without the relay when it has good oil pressure.
let me know if ya can do this or if it helps.

Jul 04, 2008 | 1985 Chevrolet Corvette

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