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Username Post: 95 CHEVY CRANKS BUT WONT START        (Topic#350012)
ChevyZdog 
Forum Newbie
Posts: 9

Reg: 03-08-18
03-08-18 08:55 PM - Post#2726947    

Got a 95 chevy z71 5.7 350 tbi .. ill start at the beggining i parked the truck for about a month due to front end issues but i got that squared away and started driving it again recently well i took a trip out of town about 60 miles away it drove fine i parked it . The next morning i tried to crank it it turned over but would not start so i shot some starter fluid in it(my first time using ever on this truck)and it kinda hesitated but it started and i drove it home . As days went on it got harder and harder to crank(3 days tops)til starter fluid would not start it. Ive changed ignition coil , pick up coil, ignition control module, engine control module or computer and spark plugs still no start i dont think im getting any fire or fuel anymore my mechanic says he smells fuel but the problem has him stumped ..



 
CowboyTrukr 
"7th Year" Silver Supporting Member
Posts: 3941
CowboyTrukr
Loc: Salt Lake City
Reg: 06-20-09
03-08-18 10:12 PM - Post#2726951    
    In response to ChevyZdog

Sorry you spent a lot of money on parts you may not have needed. You have a fuel delivery problem.

Please get your hands on an Actron TBI fuel gauge and adapter. Your local parts store may have a loaner program.

Screw it into the supply feed at the back of the TBI.

Pressure needs to be at least 9psi.


Pressure check:
Key on, engine off
You can’t start it right now so that’s the best you can do.



Greg

'95 K1500 Z71 EC Short Step 5.7L+0.040/NV3500
'00 Explorer XLT 4.0 V6 Auto
'94 K2500 5.7 NV4500 ECLB - SOLD
‘87 GMC S15 SCLB 4.3 Auto - SOLD

"The only thing necessary for evil to triumph is for good men to do nothing" Sir Edmund Burke


 
someotherguy 
Moderator
Posts: 28677
someotherguy
Age: 48
Loc: Texas
Reg: 08-01-03
03-09-18 07:21 AM - Post#2726976    
    In response to ChevyZdog

Welcome to Chevytalk,

From our FAQ post at the top of the forum, here's a link on troubleshooting a no start condition: http://www.chevytalk.org/fusionbb/showtopic.php?ti...

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 
ChevyZdog 
Forum Newbie
Posts: 9

Reg: 03-08-18
03-09-18 09:39 AM - Post#2726991    
    In response to CowboyTrukr

U say fuel problem ? Well i did a shade tree spark test with the number 1 spark plug wire and a screw driver and i still get neither blue spark or red spark . Nd if it is fuel how do i fix a fuel pressure problem ? Fuel pump or injector ? And shouldnt it have cranked if i shot starter fluid in it after all the new parts if its fuel ?



 
ChevyZdog 
Forum Newbie
Posts: 9

Reg: 03-08-18
03-09-18 10:22 AM - Post#2726998    
    In response to CowboyTrukr

I ALSO FORGOT TO MENTION THAT WHEN I CHANGED MY PICK UP COIL ON THE DISTRIBUTOR IT WAS FULL OF OIL . OIL HAD THEN TRAVEL UP THE DIST. ALL ONTO THE PICK UP COIL . COULD MY DIST. BE BAD ?



 
Chevytech 
Subject Matter Expert - Senior Member
Posts: 3747
Chevytech
Loc: Twin Cities, Minnesota, U...
Reg: 04-25-04
03-09-18 10:41 AM - Post#2727003    
    In response to ChevyZdog

  • ChevyZdog Said:
I ALSO FORGOT TO MENTION THAT WHEN I CHANGED MY PICK UP COIL ON THE DISTRIBUTOR IT WAS FULL OF OIL . OIL HAD THEN TRAVEL UP THE DIST. ALL ONTO THE PICK UP COIL . COULD MY DIST. BE BAD ?


If there is oil coming up the shaft and getting out onto the pickup coil – replace the distributor.

I wonder if someone put a distributor from an older vehicle in your truck. Around 1989-1990 the distributor shafts didn't have the groove in the shaft to direct oil "back" down into the engine. Oil would get into the pickup coil and can damage the coil windings. Any of the distributors can do this if they get very worn.

On these distributors the housing/upper bushing area can get so worn out that the shaft will move sideways so far that the points on the pickup coil pole piece get hit by the reluctor points on the shaft. When this happens the ECM receives compromised signal for RPM and timing issues.

The distributor shaft should not move side to side when you try to wiggle it sideways.


For those of you that are wondering why you are not getting replies to your thread:

Did you give the model, year, engine, fuel system type, and transmission information?

If your vehicle has been altered from stock, let us know about that too.


Edited by Chevytech on 03-09-18 10:45 AM. Reason for edit: No reason given.

 
ChevyZdog 
Forum Newbie
Posts: 9

Reg: 03-08-18
03-09-18 12:50 PM - Post#2727023    
    In response to Chevytech

Going get a Dist. Now soo do i take off Dist. Cap off do i try to wiggle it then ?



 
Chevytech 
Subject Matter Expert - Senior Member
Posts: 3747
Chevytech
Loc: Twin Cities, Minnesota, U...
Reg: 04-25-04
03-09-18 02:46 PM - Post#2727040    
    In response to ChevyZdog

  • ChevyZdog Said:
Now soo do i take off Dist. Cap off do i try to wiggle it then ?


Yes, if you take the cap off the distributor and try the wiggle the shaft sideways and it moves, the distributor needs to be replaced.


For those of you that are wondering why you are not getting replies to your thread:

Did you give the model, year, engine, fuel system type, and transmission information?

If your vehicle has been altered from stock, let us know about that too.


 
Chevytech 
Subject Matter Expert - Senior Member
Posts: 3747
Chevytech
Loc: Twin Cities, Minnesota, U...
Reg: 04-25-04
03-09-18 05:05 PM - Post#2727050    
    In response to ChevyZdog

It sounds to me like this is way beyond of your knowledge on the topic.

The timing of when the spark happens and which cylinder it goes to is dependent on the position of the rotor/shaft when you install the distributor and the timing is altered by rotating the distributor housing.

My concern is if you remove the distributor you will lose the timing position and then there is little chance you will get it running again.

For those of you that are wondering why you are not getting replies to your thread:

Did you give the model, year, engine, fuel system type, and transmission information?

If your vehicle has been altered from stock, let us know about that too.


 
ChevyZdog 
Forum Newbie
Posts: 9

Reg: 03-08-18
03-10-18 05:48 AM - Post#2727095    
    In response to Chevytech

I understand your concern but i know a little bit on setting it number 1 cylinder to top dead center the rotor cap facing the number 1 spark on dist.cap setting the harmonic balance to 0



 
ChevyZdog 
Forum Newbie
Posts: 9

Reg: 03-08-18
03-10-18 05:50 AM - Post#2727096    
    In response to ChevyZdog

Ive got places marked umder my hood to tell me where to set things even the harmonic balance is marked



 
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