05 tj 4.0 clicking/ticking (electrical I think) noise - Jeep Wrangler Forum
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Old 08-03-2019, 08:50 PM
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Hey All hopefully someone has seen this before, I have a 2005 tj 4.0 and it has started ticking or clicking when it gets warm whist idleing or rpms are below around 1k, it sounds like a relay or something electrical, but also sounds like a missfire sometimes when the clicking happens. It seems hard to locate but maybe seems to be comimg feom around the the brake booster maybe it could be a coil pack? Heres a video I took https://youtu.be/-ga-zZ2q-Mc

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Old 08-04-2019, 12:54 PM   #2
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The engine sounds pretty quiet overall in the video.

If you are getting CEL codes for random misfires...

Could be your OPDA (Oil Pump Drive Assembly), which acts like a distributor.

The cam position sensor (CPS) is the part plugged into the front of the OPDA that tells the computer which cylinders to fire and when. A bad sensor or a bad sensor wheel inside the OPDA can often produce random misfire codes.

A new Crown OPDA can be found for about $85-100.

The OPDA usually makes a noise described as "screaming monkeys" when the internal bushing is about to fail. That happens just before the shaft seizes completely. You do not have any sign of that happening.

However...
If the OPDA is old or original, the tab at the bottom that drives the oil pump wears. The wear on the tab can result in a ticking noise when it rotates, especially at idle or lower RPMs. I am attaching a photo of what the tab on the OPDA shaft looked like when I pulled it out and replaced it. The tab is not supposed to be angled at the edge (where you see shiny metal). Other photo shows wear on the OPD drive gear. Once I replaced my OPDA, I was amazed at how well the engine ran. No misfire codes since and the ticking stopped.

Nobody wants to throw parts in for nothing, but... If your OPDA is old or original, replace it even if it ends up not curing your issues. OPDA failure can make big problems for your engine.

I would seriously replace the OPDA if these conditions exist simultaneously:
1) Old or original OPDA is still on your engine
2)Ticking in the area of the OPDA is present, especially noticeable at lower RPM or idle
3) Random misfire codes, skips or roughness at idle

Good luck!

Sharp looking right-hand drive!!
Please let us know what happens.
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Old 08-04-2019, 01:23 PM   #3
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Wait a minute. You're Jeep must have been manufactured in France. Everything is opposite.

On the passenger side of the engine you would typically have the Cam Sensor and Power Distribution Box. I would feel around for the click on those units first. However in your case (RHD), you're left with only the Cam Sensor or (OPDA). Place your hand on it, see if you can feel tbe clicking. That could also explain your misfire type symptom if the OPDA is slightly out of phase.
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Old 08-05-2019, 12:14 AM
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Tzuknows I reckon it could be that OPDA (again) I did replace it about 2 years ago after it started squeeling like a monkey, but the one I replaced it with was a cheapy if I remember right. I'll try feeling it Mattaeus, Cheers! How do you know, were they made in france?!!! thats nuts
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Old 08-05-2019, 08:17 AM
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Well actually I fired her back up waited till it was warm, and ticking clicking started it is definitely not from the opda actually seems to be the rear of the engine.. it seems like a wierd one.
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Old 08-05-2019, 01:17 PM   #6
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What was the CEL code that was lit up?
Something totally unrelated to the noise?
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Old 08-06-2019, 01:54 AM
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Well I've never checked them I thought I needed a scanner so! I got a few CEL codes at the moment so I just searched what they were have a look

1. P0016 CPS cam shaft position sensor (I will be replacing the whole OPDA (again) which houses the CPS)

2. P0501 Speed sensor (when I got my SYE+ Double Cardon DS installed the workshop removed or something broke to-do with the speedo gear, so this is on my to-do list)

3. P0335 CPS crank shaft position sensor (I guess I need to order one of these also)

4. P0123 TPS (throttle position sensor) which I replaced last week... so peraps it hasn't registered yet)

So I used a screw driver to try isolate the clicking, but had no luck it's not the OPDA or CPS and I feel like I'm inches from the noise, but can't locate... its definitely near the rear motor..
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Old 08-06-2019, 07:00 AM   #8
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Wow! Sensor codes all over the place!

Any chance you have the old Mopar cam position sensor from the old OPDA?
I ran the one that came with my new Crown OPDA for a while and it ran fine. Then... I started getting misfire codes again. Swapped back the old 2005 factory sensor and no more codes.

When it comes to sensors, it seems most people on the forum have experience with Mopar sensors being the ones that are most reliable and compatible with the TJ system.

I would try replacing the CPS with a Mopar sensor before replacing the entire OPDA again. Leave the OPDA in and pop in a new Mopar sensor first. It should clear your CPS code at least. If that code does not clear and it turns out to be the sensor wheel inside the OPDA... Keep the new Mopar CPS and get the Crown replacement OPDA. Put the new Mopar sensor in the new Crown OPDA.

Try the Mopar sensors first.
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Old 08-06-2019, 10:15 AM   #9
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Quote:
Originally Posted by Oztj321 View Post
So I used a screw driver to try isolate the clicking, but had no luck it's not the OPDA or CPS and I feel like I'm inches from the noise, but can't locate... its definitely near the rear motor..

Then its the Crank Sensor. Sometimes a faulty Crank Sensor can set Cam Sensor codes, and vice versa. If that is the source of the clicking, replace it and clear the codes. You may find it will take care of most of your codes.

If you can, get an NTK or a Mopar sensor. I'll leave an image of where the Crank Sensor is located. Passenger Side Bell Housing.
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Old 08-06-2019, 08:52 PM
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Thanks guys! Okay so I have tracked down a mopar parts supplier (hard to find in OZ) ordered both the camshaft position sensor for the inside of the OPDA cheers tzukows, and a mopar crank shaft position sensor to hopefully clear both P0016 and P0335 CEL's and fix that clicking! I'm excited to see what happens, will keep you posted! tzuknows I will, pull out the crown OPDA and check out that tab at the bottom of the shaft as-well just to make sure it's not ground back like that, good photos!
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Old 08-12-2019, 01:13 AM
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Hello again, well no luck unfortunately, the same clicking from somewhere around there... and the opda tab looked normal. the same error codes are still on to which I find wierd with the new sensors, both cam shaft position sensor and the crank shaft position sensor are mopar parts but take a look at the old crank shaft sensor... yuk
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__________________
/l ,[____],*****2005 TJ 6cy 6spd (RHD)
l---L -OlllllllO-**+1" BL, ironman 2" lift,Advanced
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Old 08-15-2019, 11:11 PM
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Talking

SOLVED! hey guys so, I disconnected the battery overnight that cleared all the CEL's! so the new CPS sensors must be good! but still had the clicking... so I decided to pull off the coil packs and check their connections to the spark plugs and there it was the spark plug had been shorting on the head (I pressume) causing the click followed by the misfire. (ignore the spark plug shrapnel) but there was a fair bit of oil in the rear spark plug well, so cleaned it out replaced the spark plug and solved! So happy to have that solved and no engine light.. ahhhh... thank you all for your help!
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