Sometimes don't start - ZR-1 Net Registry Forums

max76 · 11-22-2009

Hi Guys,
How are you???
I have a little big problem with my Z.
It's happen 2 times that the starter don't run.
When the car is hot, sometimes the starter don't run. You can turn the key on, push the clutch pedal, the security light off but all dead.
I by-pass the imobilizer(vats) with the resistance and the car run great, but now i have this problem.
What can be???What i can test?
Thank you so much for help!!!!

tccrab · 11-22-2009

This dreadful condition is commonly known as the................
"DREADED NO START."
http://www.zr1netregistry.com/forum/...80&postcount=2

Before you hack in to your wiring harness to perform my patented DNS Mod, there's quite a list of things to check first.
Have you recently washed the engine of your car?
If so, you're probably going to have to replace the starter.
http://www.zr1netregistry.com/forum/...read.php?t=593
-Battery
-Battery cables
-Battery connections
-Measure starter voltage
-Check VATS
http://www.zr1netregistry.com/forum/...42&postcount=4
-Jumper out the Clutch Safety Switch
http://www.zr1netregistry.com/forum/...0&postcount=16
-Replace the Starter Relay
-Remove the Starter and have it tested
-Resist the temptation to throw heavy objects and stay away from any flammable liquids and matches.

TomC
"Crabs"

max76 · 11-22-2009

Quote:

Originally Posted by tccrab

This dreadful condition is commonly known as the................
"DREADED NO START."
http://www.zr1netregistry.com/forum/...80&postcount=2

Before you hack in to your wiring harness to perform my patented DNS Mod, there's quite a list of things to check first.
Have you recently washed the engine of your car? No, i never wash the engine
If so, you're probably going to have to replace the starter.
http://www.zr1netregistry.com/forum/...read.php?t=593
-Battery New battery, i change it last year
-Battery cables Good conditions
-Battery connections New screw when i change battery
-Measure starter voltage How i can measure it?
-Check VATS I bypass the vats with resistance and run great
http://www.zr1netregistry.com/forum/...42&postcount=4
-Jumper out the Clutch Safety Switch I'll try this
http://www.zr1netregistry.com/forum/...0&postcount=16
-Replace the Starter Relay I'll replace the relay as soon as possible
-Remove the Starter and have it tested I can remove from the top of the engine?
-Resist the temptation to throw heavy objects and stay away from any flammable liquids and matches.

TomC
"Crabs"

Tom, thank you so much for the list of check. I hope that is the relay...to remove the starter i must remove the plenum?
Thanks in advance

tccrab · 11-22-2009

Quote:

Originally Posted by max76

Tom, thank you so much for the list of check. I hope that is the relay...to remove the starter i must remove the plenum?
Thanks in advance

To get to the starter the plenum & coil packs must be removed.

Starter voltage can be measured at the clutch safety switch.
If voltage is less than 9.5v, starter won't engage.

TomC
"Crabs"

jonszr1 · 11-23-2009

dont mean to hijack this thread . but i am having a starter prob. when i turn the key it clicks it does this 2-3 times then the starter engages . does that mean i have a selinoid going out . and does anyone know where i can get a selinoid if thats it .thanx

DaveK · 11-23-2009

Quote:

Originally Posted by jonszr1

dont mean to hijack this thread . but i am having a starter prob. when i turn the key it clicks it does this 2-3 times then the starter engages . does that mean i have a selinoid going out . and does anyone know where i can get a selinoid if thats it .thanx

It could just be the battery. If it's old the voltage may be starting to drop and I know (from personal experience!) that you really need peak performance to start the LT5.

Thanks

Dave

jonszr1 · 11-23-2009

i just replaced the battery,as i thought that was it .but darn its still doing the same thing .

max76 · 11-23-2009

Thank you so much guys...for me the 90% is the starter..it's a problem legacy to the temperature.
When hot sometimes don't start but if i turn the key there is an absorption. When the temperature go down it's start as never happen.
As i write the battery is new (1 years old) the vats is bypass, i think that if was a clutch switch problem it never start...or not??

jonszr1 · 11-23-2009

best way to ck for the clutch switch is to watch the volt gauge while trying to start the car. release and press in om the clutch id the gauge goes down when you press it in the switch is ok

max76 · 11-23-2009

Sorry jonszr1...i don't understand what you write.
May you explain better??Sorry, with simple words

11-22-2009	#1
max76 Join Date: Apr 2009 Location: ITALY Posts: 264	Sometimes don't start Hi Guys, How are you??? I have a little big problem with my Z. It's happen 2 times that the starter don't run. When the car is hot, sometimes the starter don't run. You can turn the key on, push the clutch pedal, the security light off but all dead. I by-pass the imobilizer(vats) with the resistance and the car run great, but now i have this problem. What can be???What i can test? Thank you so much for help!!!!

11-22-2009	#2
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,654	Re: Sometimes don't start This dreadful condition is commonly known as the................ "DREADED NO START." http://www.zr1netregistry.com/forum/...80&postcount=2 Before you hack in to your wiring harness to perform my patented DNS Mod, there's quite a list of things to check first. Have you recently washed the engine of your car? If so, you're probably going to have to replace the starter. http://www.zr1netregistry.com/forum/...read.php?t=593 -Battery -Battery cables -Battery connections -Measure starter voltage -Check VATS http://www.zr1netregistry.com/forum/...42&postcount=4 -Jumper out the Clutch Safety Switch http://www.zr1netregistry.com/forum/...0&postcount=16 -Replace the Starter Relay -Remove the Starter and have it tested -Resist the temptation to throw heavy objects and stay away from any flammable liquids and matches. TomC "Crabs" __________________ TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B]

11-23-2009	#5
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Sometimes don't start dont mean to hijack this thread . but i am having a starter prob. when i turn the key it clicks it does this 2-3 times then the starter engages . does that mean i have a selinoid going out . and does anyone know where i can get a selinoid if thats it .thanx

11-23-2009	#7
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Sometimes don't start i just replaced the battery,as i thought that was it .but darn its still doing the same thing .

11-23-2009	#8
max76 Join Date: Apr 2009 Location: ITALY Posts: 264	Re: Sometimes don't start Thank you so much guys...for me the 90% is the starter..it's a problem legacy to the temperature. When hot sometimes don't start but if i turn the key there is an absorption. When the temperature go down it's start as never happen. As i write the battery is new (1 years old) the vats is bypass, i think that if was a clutch switch problem it never start...or not??

11-23-2009	#9
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Sometimes don't start best way to ck for the clutch switch is to watch the volt gauge while trying to start the car. release and press in om the clutch id the gauge goes down when you press it in the switch is ok

11-23-2009	#10
max76 Join Date: Apr 2009 Location: ITALY Posts: 264	Re: Sometimes don't start Sorry jonszr1...i don't understand what you write. May you explain better??Sorry, with simple words