posted
I didnt do the install but one of my coworkers did and managed to get himself in WAY over his head and me a little bit too...
Apparently Customer purchased 96 Land Cruiser and noticed a ticking noise that was RPM dependant in the FM radio. As the RPMs went up the speed of the ticking increased. Turn engine off and there's no ticking. Apparently ticking wasn't there with AM or CD operation. Coworker installs speakers using factory wires, and installs deck using your standard met 70-8112 toyota amplifier integration harness.
Well tick is still there, and the customer wants it gone.
the first thing I checked was to make sure it was the speakers and not a valve or injector and it indeed was eminating from the speakers... Then we tried ground loop isolators, regrounding the deck to the chassis, regrounding the deck to the negative post of the battery, cleaning both battery terminals, checking ALL grounds in the engine bay, grounding the case of the factory amp, grounding the case of the deck, and tried different grounding points in the engine bay. We also tried a new deck, an amplified VW antenna adapter, and nothing fixes it!!
This leaves me thinking 2 things - spark plug/spark plug wire is bad, or even the distributor or rotor... Either that stuff or the factory amp needs to be bypassed. Thoughts?
-------------------- 2005 Florida Street C Champion 2004 SBN Street C Champion 2004 SBN IDBL No Wall Champion 2003 NOPI Nats Street B Champion
posted
Have you tried just removing the antenna plug from the back of the radio? If it's FM related and nothing else I'd think it's antenna or antenna wire related. Sounds like you've eliminated any other possibility. This is going to sound stupid (or maybe not) but is it the same at either end of the frequency range? Is there one spot or freq. where it's worse? How far apart are the ticks 1. at idle 2. at 2000 rpm etc.
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inno73@hotmail.com Posts: 490 | From: Fort Frances, Ontario, Canada | Registered: May 1999
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posted
yup tried pulling the antenna plug and when the plug disconnects the ticking stops. When plugged in and its ticking, the interval is about right for one of the 6 cylinders to be firing. The ticking of course also speeds up with the rpm. The ticking only shows up in the FM band and it's present at all frequencies...
got about 3 or 4 people that say it's a loose spark plug wire over on the land cruiser forum, so thats what ima try when the customer comes back. lol
-------------------- 2005 Florida Street C Champion 2004 SBN Street C Champion 2004 SBN IDBL No Wall Champion 2003 NOPI Nats Street B Champion
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