Frustrated crank no start (Page 1/4)
JWTMedic NOV 04, 09:27 PM
To start sorry for the long post, this is the 3rd fiero I have owned, first one was amazing until it caught fire! The second one was a Ferrari kit car, loved it but it had a cranking no start one day that I could never get figured out so I sold it...
With that being said, my son now has a 1987 Fiero GT, we got it was in non running condition, we changed the ICM and the distributor, set timing and got it running and driving.
Now for the issue, it was running rough so we decided to change the fuel injectors, did that and drove it around and it ran great but, noticed a strong fuel smell. Found that the cold start Injector tube going up to the fuel rail was leaking, found a torn O ring, replaced that and tried to start the car and all it did was crank no start. This was when I remembered that I never fully tightened down the distributor so being dumb I turned it slightly and had my son crank it, then turned it more and more (no start just crank) I then remembered I forgot to ground at A B terminal before turning the distributor. So reset the timing,to TDC, still no start just crank.... sooo, since that point we have replaced nearly every sensor and the ECM, set the timing at least 6 times with still no results but a crank no start, the cranking sounds normal, battery is new making great contact, ICM was checked and it is good, it has spark confirmed by spark plug test light, fuel pump has pressure at the Schrader valve, all fuses are good. I am stumped and ready to push it out of the garage and make it someone else's problem "
IMSA GT NOV 04, 10:06 PM
Sometimes the easiest thing to do is simply spray some starting fluid in the intake and see if it runs for a few seconds. If it does then you have a fuel delivery issue.
Patrick NOV 04, 10:11 PM

I posted my method Here for setting the static timing.
JWTMedic NOV 05, 07:25 AM

quote
Originally posted by IMSA GT:

Sometimes the easiest thing to do is simply spray some starting fluid in the intake and see if it runs for a few seconds. If it does then you have a fuel delivery issue.



I have tried this with no change, doesn't even try to start.
I have pulled the number 1 and 3 spark plugs after cranking and they are black and damp with fuel
JWTMedic NOV 05, 07:31 AM

quote
Originally posted by Patrick:


I posted my method Here for setting the static timing.



Thank you you, I read through the entire thread that you posted a link to.
I have set initial timing to both 0 and 10 degrees and still nothing, in both cases TDC was verified by bore scope and holding my finger over the hole, it pushed my finger out of the hole, I have also checked compression in cylinder 1,3,5 and have great compression. The rotor is pointing toward the little rubber line on the intake plenum and the rotor limes up with spark plug wire #1 on the distributor cap.
fierosound NOV 05, 10:49 AM
Do you have SPARK at the plugs?

------------------
My World of Wheels Winners (Click on links below)

3.4L Supercharged 87 GT and Super Duty 4 Indy #163

XxdjxX89 NOV 13, 08:27 PM
What you want to do is put motor at tdc cyl 1 and see where the rotar on dist is pointing to ,,, if not pointing at number 1 plug wire then move dist to point at number 1
JWTMedic NOV 13, 08:36 PM
It points directly at the number one cylinder on thr distributor

QUOTE]Originally posted by XxdjxX89:

What you want to do is put motor at tdc cyl 1 and see where the rotar on dist is pointing to ,,, if not pointing at number 1 plug wire then move dist to point at number 1[/QUOTE]

[This message has been edited by JWTMedic (edited 11-13-2022).]

XxdjxX89 NOV 13, 08:41 PM
Put motor around 12 degrees btdc pointing at number one spark plug on the cap ,,, reason for this is because timing will retard a lot when started
XxdjxX89 NOV 13, 08:42 PM
Another thing test to make sure you have spark ,, also verify check engine light comes on with key in on position