No Crank Any Ideas? - ZR-1 Net Registry Forums

902066 · 04-22-2017

Pulled the plenum to change out original coils and rebuilt injectors. Put it all back together with new injectors from FIC. and n.o.s. coils, tried to start. Turn the key, everything on dash lights up like normal, fuel pumps run, but engine doesn't even crank.
Pulled plenum again, everything seems to be hooked up, no bent pins on connectors, and I thought they were all straight and tight.
I pulled the plenum the 1st time 10 years ago, put it all back together and it ran fine. Any ideas whats not right this time? Thanks jim

Hib Halverson · 04-22-2017

I'll assume that before the most recent plenum-pulls, the car started and ran ok. I'll, also, assume that the battery is ok, as are battery cables and connections.

Have you run though the no-start diagnostic info in the Service Manual?

BigJohn · 04-22-2017

Clutch switch?

QB93Z · 04-22-2017

Verify that both battery terminals are clean and tight. Disconnect any after market systems attached to the battery terminals.

Put the ignition key to ON, Engine not started. Note the battery voltage on the instrument panel. Turn the key to start, while watching the battery voltage meter. If the needle does not deflect, then investigate the starting circuit, ie clutch switch, VATS, TDS.

If the volt meter does deflect, it means that the starter solenoid is energizing but the solenoid contacts are not passing current to the starter motor. Rebuild the started solenoid or replace the starter.

Good luck,

Jim

Top Toy · 04-22-2017

My friend's 91 just had a no start episode. Had just come out of hibernation after being on a trickle charger all winter. Started fine after taking it off the charger but would not restart after an ice cream stop. We thought it must be VATS or clutch switch since everything else worked but turned out to be a weak battery. Try putting a charger on or jump starting before anything more radical.

Sent from my XT1254 using ZR-1 Net Registry mobile app

DRM500RUBYZR-1 · 04-22-2017

The above two posts will likely help you isolate, identify and resolve the problem rather quickly.
Simply do what each suggests, starting with the battery.
Good luck, and keep us posted with your progress.

Marty

902066 · 04-23-2017

Progress report,
1st I would like to thank all who responded. Spent the day putting plenum and everything back together, taking time to ensure all connections are done right. Tried to start engine with same result, fuel pumps run, dash lights up like a Christmas tree, engine doesn't even crank.
I observed what QB937 suggested, watched volt gage, gage moves up when key turned on first notch, when turning key to start notch gage moves back a hair. No crank.
Next thing I am going to try is Top Toys suggestion. Take the battery out and have it load tested, since it is the easiest thing to do 1st and because the battery is 10 years old. Although it has always been on a trickle charger, and never given me a prob.
I am hesitant to believe it is a starter, vats, or clutch switch problem because the car only has 12,000 miles and has never given me any kind of trouble before. I wont be able to work with the car until later in the week, I'll try to update with progress and possible look for more help.Thanks Jim

Top Toy · 04-23-2017

That 10 year old battery is certainly suspect! Good luck!

Sent from my XT1254 using ZR-1 Net Registry mobile app

ssrszz4 · 04-24-2017

Great taking care of that battery I've never had on last near that long.

Sent from my XT1585 using ZR-1 Net Registry mobile app

Young1 · 05-01-2017

I reinstalled my plenum this past weekend. Cranked but no start. CCM 20 amp fuse was blown. Replaced and all is well.

04-22-2017	#1
902066 Join Date: Jul 2005 Posts: 189	No Crank Any Ideas? Pulled the plenum to change out original coils and rebuilt injectors. Put it all back together with new injectors from FIC. and n.o.s. coils, tried to start. Turn the key, everything on dash lights up like normal, fuel pumps run, but engine doesn't even crank. Pulled plenum again, everything seems to be hooked up, no bent pins on connectors, and I thought they were all straight and tight. I pulled the plenum the 1st time 10 years ago, put it all back together and it ran fine. Any ideas whats not right this time? Thanks jim

04-22-2017	#2
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 899	Re: No Crank Any Ideas? I'll assume that before the most recent plenum-pulls, the car started and ran ok. I'll, also, assume that the battery is ok, as are battery cables and connections. Have you run though the no-start diagnostic info in the Service Manual? __________________ Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878

04-22-2017	#3
BigJohn Join Date: Feb 2012 Location: Ledyard,CT Posts: 8,170	Re: No Crank Any Ideas? Clutch switch?

04-22-2017	#4
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,689	Re: No Crank Any Ideas? Verify that both battery terminals are clean and tight. Disconnect any after market systems attached to the battery terminals. Put the ignition key to ON, Engine not started. Note the battery voltage on the instrument panel. Turn the key to start, while watching the battery voltage meter. If the needle does not deflect, then investigate the starting circuit, ie clutch switch, VATS, TDS. If the volt meter does deflect, it means that the starter solenoid is energizing but the solenoid contacts are not passing current to the starter motor. Rebuild the started solenoid or replace the starter. Good luck, Jim __________________ If it isn't fun, you aren't doing it right! 1990 Black ZR-1 - sold 1993 Quasar Blue ZR-1 1994 Competition Yellow ZR-1 1995 Dark Purple ZR-1 Maryland State Coordinator WAZOO Member

04-22-2017	#5
Top Toy Join Date: Jul 2012 Location: Allentown, PA Posts: 309	Re: No Crank Any Ideas? My friend's 91 just had a no start episode. Had just come out of hibernation after being on a trickle charger all winter. Started fine after taking it off the charger but would not restart after an ice cream stop. We thought it must be VATS or clutch switch since everything else worked but turned out to be a weak battery. Try putting a charger on or jump starting before anything more radical. Sent from my XT1254 using ZR-1 Net Registry mobile app __________________ '95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.

04-22-2017	#6
DRM500RUBYZR-1 Join Date: Sep 2008 Location: Mullica Hill, New Jersey Posts: 2,574	Re: No Crank Any Ideas? The above two posts will likely help you isolate, identify and resolve the problem rather quickly. Simply do what each suggests, starting with the battery. Good luck, and keep us posted with your progress. Marty

04-23-2017	#7
902066 Join Date: Jul 2005 Posts: 189	Re: No Crank Any Ideas? Progress report, 1st I would like to thank all who responded. Spent the day putting plenum and everything back together, taking time to ensure all connections are done right. Tried to start engine with same result, fuel pumps run, dash lights up like a Christmas tree, engine doesn't even crank. I observed what QB937 suggested, watched volt gage, gage moves up when key turned on first notch, when turning key to start notch gage moves back a hair. No crank. Next thing I am going to try is Top Toys suggestion. Take the battery out and have it load tested, since it is the easiest thing to do 1st and because the battery is 10 years old. Although it has always been on a trickle charger, and never given me a prob. I am hesitant to believe it is a starter, vats, or clutch switch problem because the car only has 12,000 miles and has never given me any kind of trouble before. I wont be able to work with the car until later in the week, I'll try to update with progress and possible look for more help.Thanks Jim

04-23-2017	#8
Top Toy Join Date: Jul 2012 Location: Allentown, PA Posts: 309	Re: No Crank Any Ideas? That 10 year old battery is certainly suspect! Good luck! Sent from my XT1254 using ZR-1 Net Registry mobile app __________________ '95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.

04-24-2017	#9
ssrszz4 Join Date: Jan 2017 Location: US Posts: 233	Re: No Crank Any Ideas? Great taking care of that battery I've never had on last near that long. Sent from my XT1585 using ZR-1 Net Registry mobile app

05-01-2017	#10
Young1 Join Date: Sep 2016 Location: Ocala, FL Posts: 890	Re: No Crank Any Ideas? I reinstalled my plenum this past weekend. Cranked but no start. CCM 20 amp fuse was blown. Replaced and all is well.