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

ZR-1 Net Registry Forums (http://zr1.net/forum/index.php)

- C4 ZR-1 Technical Postings (http://zr1.net/forum/forumdisplay.php?f=9)

- - Sometimes don't start (http://zr1.net/forum/showthread.php?t=10321)

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!!!!:)

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"

Re: Sometimes don't start

Quote:

Originally Posted by tccrab (Post 75155)

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

Re: Sometimes don't start

Quote:

Originally Posted by max76 (Post 75157)

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"

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

Re: Sometimes don't start

Quote:

Originally Posted by jonszr1 (Post 75305)

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

Re: Sometimes don't start

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

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??

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

Re: Sometimes don't start

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