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Author Topic: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?  (Read 7066 times)

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Doctor Gollum

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #45 on: 15 April 2024, 17:47:05 »

And how does the battery voltage gauge look...
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tomuxzz

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #46 on: 15 April 2024, 18:27:59 »

And how does the battery voltage gauge look...
On dash it looks like normal voltage.



Or should I test with voltmeter ?
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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #47 on: 15 April 2024, 18:48:41 »

And how does the battery voltage gauge look...
On dash it looks like normal voltage.



Or should I test with voltmeter ?
When the rev counter is erratic?

And what's that red light above it?
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tomuxzz

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #48 on: 15 April 2024, 19:02:05 »

And how does the battery voltage gauge look...
On dash it looks like normal voltage.



Or should I test with voltmeter ?
When the rev counter is erratic?

And what's that red light above it?
Tomorrow or Wednesday I will do new video with voltage arrow. But I think arrow is stable and always at same position.
That light is seatbelt warning for pasenger.
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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #49 on: 15 April 2024, 19:39:52 »

That points towards an issue either with the cluster or the connection from the engine ECU.

The dash is the one major difference between the Catera and Omega, and without seeing behind the cluster there may be additional wiring/plugs for the extra displays/warnings.

I suspect that the alternator only feeds the charge light (and battery voltage gauge), whereas the rpm signal comes from the engine ECU information (crank and/or cam sensor).

If the pedal trick works*, any codes may highlight a discrepancy.

* It should as the car is DBW.

The speedometer issue is almost guaranteed to be unrelated.
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tomuxzz

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #50 on: 16 April 2024, 07:53:39 »

That points towards an issue either with the cluster or the connection from the engine ECU.

The dash is the one major difference between the Catera and Omega, and without seeing behind the cluster there may be additional wiring/plugs for the extra displays/warnings.

I suspect that the alternator only feeds the charge light (and battery voltage gauge), whereas the rpm signal comes from the engine ECU information (crank and/or cam sensor).

If the pedal trick works*, any codes may highlight a discrepancy.

* It should as the car is DBW.

The speedometer issue is almost guaranteed to be unrelated.
But engine right on high rpm. Car starts to stall when accelerating. Maybe I should start with (crank and/or cam sensor)?
Previous owner said that they changed crank sensor from omega.
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Marks DTM Calib

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #51 on: 16 April 2024, 08:03:44 »

That points towards an issue either with the cluster or the connection from the engine ECU.

The dash is the one major difference between the Catera and Omega, and without seeing behind the cluster there may be additional wiring/plugs for the extra displays/warnings.

I suspect that the alternator only feeds the charge light (and battery voltage gauge), whereas the rpm signal comes from the engine ECU information (crank and/or cam sensor).

If the pedal trick works*, any codes may highlight a discrepancy.

* It should as the car is DBW.

The speedometer issue is almost guaranteed to be unrelated.
But engine right on high rpm. Car starts to stall when accelerating. Maybe I should start with (crank and/or cam sensor)?
Previous owner said that they changed crank sensor from omega.

Fuel filter ok?

if it miss fires on acceleration that points to ignition voltage and coil packs
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tomuxzz

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #52 on: 16 April 2024, 13:44:07 »

That points towards an issue either with the cluster or the connection from the engine ECU.

The dash is the one major difference between the Catera and Omega, and without seeing behind the cluster there may be additional wiring/plugs for the extra displays/warnings.

I suspect that the alternator only feeds the charge light (and battery voltage gauge), whereas the rpm signal comes from the engine ECU information (crank and/or cam sensor).

If the pedal trick works*, any codes may highlight a discrepancy.

* It should as the car is DBW.

The speedometer issue is almost guaranteed to be unrelated.
But engine right on high rpm. Car starts to stall when accelerating. Maybe I should start with (crank and/or cam sensor)?
Previous owner said that they changed crank sensor from omega.

Fuel filter ok?

if it miss fires on acceleration that points to ignition voltage and coil packs
I'm expecting fuel filter too And I will start to change it first soon.
Coil pack are new. Engine is not misfiring.
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Doctor Gollum

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Re: Cadilac Catera 3.0 V6 is it worth to buy for fun or collection ?
« Reply #53 on: 16 April 2024, 14:03:32 »

Or a weak pump, or fuel pressure regulator...
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tomuxzz

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Or a weak pump, or fuel pressure regulator...
FUel pump was changed by previous owner. I changed fuel filter nothing worked.
Also I've noticed that when I cant start engine Sport light on the dash starts blinkink (I've googled it its gearbox some error)
For now I dont have "My Naff Code Reader" to read faults but maybe there is some kind of sensor which checks rpm?
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Doctor Gollum

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Just because something was previously changed,. doesn't mean that a) it's not faulty or b) not correctly fitted.

Fuel filter may not have made a difference, but I would wager that it was overdue.

The gear selector issue is yet another, separate, issue rather than part of everything else.

Have you replaced the MAF yet?

Have you reseated the cluster yet?

Also what other parts have been replaced recently?

Get the codes read, either with the pedal trick or an actual code reader and report back.

Crank sensor produces the rpm signal.
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