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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: kubik1981 on October 29, 2008, 06:16:15 PM

Title: injector question
Post by: kubik1981 on October 29, 2008, 06:16:15 PM

i have my 1990 tracker 8v 5sp with a/c.  The question i have with no accessories running it is quite when i turn on my lights or like today when i turn on my heater it now makes a loud ticking sound. turn it all off it stops. i open my hood and and listen it is loudest at the throttle body.  Any ideas on what this noise could be.

Title: Re: injector question
Post by: derekj on October 29, 2008, 10:12:22 PM

Can you touch the t/b and tell where it is coming from? Maybe it's coming from the alt?

Derek

Title: Re: injector question
Post by: Rhinoman on October 30, 2008, 06:02:31 AM

Its most probably the Idle Speed Controller (ISC) which will ramp up with electrical load. Check your ground connections.

Title: Re: injector question
Post by: kubik1981 on October 30, 2008, 07:15:36 AM

if it has a bad ground will it make that noise. Because i know if turn something on and it makes that noise the engine does not kick up the rpm's

Title: Re: injector question
Post by: Rhinoman on October 31, 2008, 11:48:41 AM

Quote from: kubik1981 on October 30, 2008, 07:15:36 AM

if it has a bad ground will it make that noise. Because i know if turn something on and it makes that noise the engine does not kick up the rpm's

I don't believe that the idle speed should increase. The ISC is adding more air to increase power and maintain the idle speed. If it has a bad ground it could operate erratically causing it to be noisy. It may be shot.

Title: Re: injector question
Post by: kubik1981 on October 31, 2008, 05:06:46 PM

not to be stupid but where abouts on the throtle body is that sensor