Car wont start: weird clicking under intake manifold

Proxy One · 05-01-2008, 06:12 PM

I was trying to start my car again today and it wont start, it fires everynow and then and tries to start but dies. When I hold the key in the on position without trying to start the car there is a clicking under the upper intake manifold that I have never heard before could this be what is the issue?

Im open to any ideas, I just drove the car like 30 miles last month with what seemed like no problems and havent changed anything other than the PFC maps.

Thanx
Jeremy

KaiFD3S · 05-01-2008, 06:43 PM

Just a wild guess but it may be your injectors...it could be clogged or gone bad...

David Jerome · 05-01-2008, 06:45 PM

Quote:

Originally Posted by KaiFD3S

Just a wild guess but it may be your injectors...it could be clogged or gone bad...

The injector should not be receiving any signal until the trigger wheel behind the main pulley starts to turn, Im not saying it is impossible for that to be it but I wouldnt think so.

David Jerome · 05-01-2008, 06:44 PM

Sounds like your ISC (Idle Speed Control) I really wouldnt think that it would prevent it from starting, however it will definately effect your idle once started. Just disconnect it and turn the Idle Speed Screw counter clockwise a couple times and then readjust it once you start the car. The ISCs fail commonly and make weird noises.

Proxy One · 05-01-2008, 10:40 PM

which one is the ICS again? I think I may have blocked that one off when I took all the emissions off? So it may not even be there.

l8r

David Jerome · 05-01-2008, 11:58 PM

Quote:

Originally Posted by Proxy One

which one is the ICS again? I think I may have blocked that one off when I took all the emissions off? So it may not even be there.

l8r

Back of the UIM with the white connector on the wiring harness going to it.

dudemaaan · 05-02-2008, 12:33 AM

i agree sounds like the ICS, unless an injector wire is somehow grounding out. Pull the plugs and see if the car is flooded. The ICS shouldnt keep the car from starting as David stated.

cabaynes · 05-02-2008, 10:05 AM

Check to see if you have spark, maybe one of your coils has died

Proxy One · 05-02-2008, 10:36 AM

Hmm, im gonna check these things out but I have recently just checked most of this stuff and it was all fine. I think the car is flooded from running too slow at idle untuned when I last had it running.

David Jerome · 05-02-2008, 10:50 AM

If you start to car and it dies immediately after about 2 or 3 shots you can pretty much gaurantee that you have fouled the plugs.

Proxy One · 05-02-2008, 06:04 PM

Well, I just tried to start it again today and looks like now im not getting any fuel presure from the pump. Either it isnt coming on or its not being told to come on. Zero nada zip for presure at the engine.

SPICcnmFD · 05-05-2008, 09:30 AM

Is the pump coming on??

***Herblenny*** · 05-07-2008, 02:35 PM

Thats crazy!!! What pump are you running?

Proxy One · 05-19-2008, 11:18 AM

Well shit, I just got finished changing out the pump yesterday to a Supra Denso pump that I wanted to do anyhow. Well I still am not getting any pressure with the key in the on position. I cant beleive that its leaking past the injectors again? I have not even driven it more than 30 miles since I got it back from the shop and it was holding pressure fine when I got it back from them.

***Herblenny*** · 05-21-2008, 09:14 AM

Did you check the fuel pump relay?

05-01-2008, 06:12 PM	#1
Proxy One Victory Is Mine Join Date: Feb 2008 Location: Suwanee GA Posts: 428 Rep Power: 18	Car wont start: weird clicking under intake manifold I was trying to start my car again today and it wont start, it fires everynow and then and tries to start but dies. When I hold the key in the on position without trying to start the car there is a clicking under the upper intake manifold that I have never heard before could this be what is the issue? Im open to any ideas, I just drove the car like 30 miles last month with what seemed like no problems and havent changed anything other than the PFC maps. Thanx Jeremy __________________ www.dealsgaprotaryrally.com 1994 Rx7 White 2001 RZ GT35R'd 1972 Rx2 Orange Coupe 5spd 2006 STi 1986 Buick GN

05-01-2008, 06:44 PM	#4
David Jerome RCC Contributor Join Date: Jan 2008 Posts: 713 Rep Power: 18	Sounds like your ISC (Idle Speed Control) I really wouldnt think that it would prevent it from starting, however it will definately effect your idle once started. Just disconnect it and turn the Idle Speed Screw counter clockwise a couple times and then readjust it once you start the car. The ISCs fail commonly and make weird noises. __________________ David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) PM me about low priced, high quality port work

05-01-2008, 10:40 PM	#5
Proxy One Victory Is Mine Join Date: Feb 2008 Location: Suwanee GA Posts: 428 Rep Power: 18	which one is the ICS again? I think I may have blocked that one off when I took all the emissions off? So it may not even be there. l8r __________________ www.dealsgaprotaryrally.com 1994 Rx7 White 2001 RZ GT35R'd 1972 Rx2 Orange Coupe 5spd 2006 STi 1986 Buick GN

05-02-2008, 12:33 AM	#7
dudemaaan Rotary Fanatic Join Date: Mar 2008 Location: Brenham, TX Posts: 335 Rep Power: 18	i agree sounds like the ICS, unless an injector wire is somehow grounding out. Pull the plugs and see if the car is flooded. The ICS shouldnt keep the car from starting as David stated. __________________ 500+ HP thanks to: Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap!

05-02-2008, 10:05 AM	#8
cabaynes Rotary Fan in Training Join Date: Feb 2008 Location: Las Vegas Posts: 36 Rep Power: 0	Check to see if you have spark, maybe one of your coils has died __________________ Charlie \| cabaynes.com \| '93 R1 CYM (x2)

05-01-2008, 06:43 PM	#2
KaiFD3S Rotary Fanatic Join Date: Mar 2008 Posts: 437 Rep Power: 18	Just a wild guess but it may be your injectors...it could be clogged or gone bad...

05-02-2008, 10:36 AM	#9
Proxy One Victory Is Mine Join Date: Feb 2008 Location: Suwanee GA Posts: 428 Rep Power: 18	Hmm, im gonna check these things out but I have recently just checked most of this stuff and it was all fine. I think the car is flooded from running too slow at idle untuned when I last had it running. __________________ www.dealsgaprotaryrally.com 1994 Rx7 White 2001 RZ GT35R'd 1972 Rx2 Orange Coupe 5spd 2006 STi 1986 Buick GN

05-02-2008, 10:50 AM	#10
David Jerome RCC Contributor Join Date: Jan 2008 Posts: 713 Rep Power: 18	If you start to car and it dies immediately after about 2 or 3 shots you can pretty much gaurantee that you have fouled the plugs. __________________ David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) PM me about low priced, high quality port work

05-02-2008, 06:04 PM	#11
Proxy One Victory Is Mine Join Date: Feb 2008 Location: Suwanee GA Posts: 428 Rep Power: 18	Well, I just tried to start it again today and looks like now im not getting any fuel presure from the pump. Either it isnt coming on or its not being told to come on. Zero nada zip for presure at the engine. __________________ www.dealsgaprotaryrally.com 1994 Rx7 White 2001 RZ GT35R'd 1972 Rx2 Orange Coupe 5spd 2006 STi 1986 Buick GN

05-05-2008, 09:30 AM	#12
SPICcnmFD Rotary Fanatic Join Date: Feb 2008 Location: B'ham, AL Posts: 329 Rep Power: 18	Is the pump coming on?? __________________ 1993 Rx-7 SM2 #11 At the local AutoX: http://www.youtube.com/watch?v=9VOSQkkSLQs Speed for Sale shootout 2007: http://www.youtube.com/watch?v=JiqlyAkGmpg A few laps at Barbers: http://www.youtube.com/watch?v=6_h5q...x=0&playnext=1

05-07-2008, 02:35 PM	#13
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	Thats crazy!!! What pump are you running? __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

05-19-2008, 11:18 AM	#14
Proxy One Victory Is Mine Join Date: Feb 2008 Location: Suwanee GA Posts: 428 Rep Power: 18	Well shit, I just got finished changing out the pump yesterday to a Supra Denso pump that I wanted to do anyhow. Well I still am not getting any pressure with the key in the on position. I cant beleive that its leaking past the injectors again? I have not even driven it more than 30 miles since I got it back from the shop and it was holding pressure fine when I got it back from them. __________________ www.dealsgaprotaryrally.com 1994 Rx7 White 2001 RZ GT35R'd 1972 Rx2 Orange Coupe 5spd 2006 STi 1986 Buick GN

05-21-2008, 09:14 AM	#15
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	Did you check the fuel pump relay? __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

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