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Search: Posts Made By: ZVOLV
Forum: maintenance & nonperformance 06-30-2020, 10:30 PM
Replies: 8
Views: 143
Posted By ZVOLV
There isn't one. Circuits in the fuse block in...

There isn't one. Circuits in the fuse block in the cabin replaced it.
Forum: performance & modifications 06-28-2020, 03:27 PM
Replies: 6
Views: 215
Posted By ZVOLV
Maybe take off a nut from the strut mount and see...

Maybe take off a nut from the strut mount and see if it threads onto that stud under the car. Then bring nut to store for reference.
Forum: performance & modifications 06-28-2020, 03:14 PM
Replies: 6
Views: 215
Posted By ZVOLV
I guess M10X1.25

I guess M10X1.25
Forum: maintenance & nonperformance 06-27-2020, 06:40 PM
Replies: 6
Views: 259
Posted By ZVOLV
Check for and oxidized fuse/fuse holder by the...

Check for and oxidized fuse/fuse holder by the battery.
Forum: maintenance & nonperformance 06-26-2020, 03:02 PM
Replies: 6
Views: 288
Posted By ZVOLV
Keep the EGR. It lowers NOX emissions. NOX makes...

Keep the EGR. It lowers NOX emissions. NOX makes smog.
Forum: maintenance & nonperformance 06-26-2020, 02:14 AM
Replies: 3
Views: 275
Posted By ZVOLV
Add RTV

Add RTV
Forum: maintenance & nonperformance 06-25-2020, 11:42 PM
Replies: 6
Views: 288
Posted By ZVOLV
It's probably just a open circuit on the EGR temp...

It's probably just a open circuit on the EGR temp sensor. It should be about 600 ohms cold. Check it. I've had to do mine twice recently (used parts)

You may also have rusty/clogged ports= no...
Forum: maintenance & nonperformance 06-24-2020, 11:48 AM
Replies: 2
Views: 281
Posted By ZVOLV
I wanna guess air leaks.

I wanna guess air leaks.
Forum: performance & modifications 06-24-2020, 12:52 AM
Replies: 33
Views: 1,332
Posted By ZVOLV
There isn't a power steering pump on that engine.

There isn't a power steering pump on that engine.
Forum: maintenance & nonperformance 06-24-2020, 12:49 AM
Replies: 5
Views: 279
Posted By ZVOLV
Cracks in the turbine housing will cause this....

Cracks in the turbine housing will cause this. Pull the downpipe and look in there with a mirror.

Torn CBV. It's a TD05-12B I assume? Or Garrett T3?
Forum: maintenance & nonperformance 06-23-2020, 01:36 PM
Replies: 18
Views: 1,836
Posted By ZVOLV
I ended up being the guy that swapped the trans...

I ended up being the guy that swapped the trans for the Original Poster. (OP). Ha. Nice threadjack.

Disconnect the linkage, throw the arm on the trans into park and recheck.
Forum: performance & modifications 06-23-2020, 11:39 AM
Replies: 33
Views: 1,332
Posted By ZVOLV
Expect to have to do some serious software...

Expect to have to do some serious software hacking. Immobilizer, stabilitrack, etc. Good luck.
Forum: maintenance & nonperformance 06-22-2020, 01:37 AM
Replies: 11
Views: 449
Posted By ZVOLV
No be crank sensor on ye 1989 740 T. Spray...

No be crank sensor on ye 1989 740 T.

Spray around with brake cleaner
and check for airleaks.
Forum: performance & modifications 06-21-2020, 02:37 PM
Replies: 33
Views: 1,332
Posted By ZVOLV
We recommend routine "fuel induction" services on...

We recommend routine "fuel induction" services on direct injection engines. We use a tool that mists a cleaning solution into the throttle body and cleans intake valve deposits.

I've heard of the...
Forum: maintenance & nonperformance 06-18-2020, 08:28 PM
Replies: 23
Views: 779
Posted By ZVOLV
Yeah a meter, test lamp, LED, etc into the...

Yeah a meter, test lamp, LED, etc into the compressor circuit would tell you if the compressor is being turned off. I thought of mentioning this too.
Forum: performance & modifications 06-18-2020, 02:20 PM
Replies: 33
Views: 1,332
Posted By ZVOLV
Direct injection also has problems with heavy...

Direct injection also has problems with heavy carbon buildup on the intake valves: no fuel/air mixture going over the intake valve to clean it.


It makes good power and fuel economy.

I'd rock...
Forum: maintenance & nonperformance 06-18-2020, 01:57 PM
Replies: 37
Views: 1,041
Posted By ZVOLV
You do NOT need to be above 14V.

You do NOT need to be above 14V.
Forum: maintenance & nonperformance 06-18-2020, 10:43 AM
Replies: 37
Views: 1,041
Posted By ZVOLV
300mv drop from the alt to the block is a lot....

300mv drop from the alt to the block is a lot. Try running a redundant ground..


What's the issue with the charging system?
Forum: maintenance & nonperformance 06-17-2020, 10:20 PM
Replies: 37
Views: 1,041
Posted By ZVOLV
I am gonna go drink beer. I have been working on...

I am gonna go drink beer. I have been working on cars all day. I diagnosed and fixed about 6 of em. Done.

Check the brushes. 2 screws. Run another ground wire. And run a new exciter wire. Run a...
Forum: maintenance & nonperformance 06-17-2020, 10:09 PM
Replies: 37
Views: 1,041
Posted By ZVOLV
Years of experience, a meter, and a test lamp. ...

Years of experience, a meter, and a test lamp.

No, the voltage does not have to be 14V. Modern cars with duty cycle regulated generators show 12.6V sometimes on the charging system. 14+ sometimes....
Forum: performance & modifications 06-17-2020, 09:52 PM
Replies: 33
Views: 1,332
Posted By ZVOLV
Direct injection

You gotta replace the high pressure fuel pipes each time you crack them free.
Forum: maintenance & nonperformance 06-17-2020, 05:43 PM
Replies: 37
Views: 1,041
Posted By ZVOLV
Your fuses are blowing from a short to ground...

Your fuses are blowing from a short to ground somewhere.
Forum: maintenance & nonperformance 06-17-2020, 05:41 PM
Replies: 37
Views: 1,041
Posted By ZVOLV
In a bind, you can just "slap" 12V to the exciter...

In a bind, you can just "slap" 12V to the exciter wire and the generator will wake up and start charging. You only need to do it ONCE per drive cycle. So if for some reason, you are on that road trip...
Forum: maintenance & nonperformance 06-17-2020, 02:17 PM
Replies: 23
Views: 779
Posted By ZVOLV
As a general rule, i expect to see the high side...

As a general rule, i expect to see the high side at about DOUBLE AMBIENT temp. (Degrees F multiplied by 2= approx high side)

Your second pic (Volvo manual) shows high side readings should be under...
Forum: maintenance & nonperformance 06-17-2020, 01:32 AM
Replies: 23
Views: 779
Posted By ZVOLV
I still think 250 PSI (high side) is too high. I...

I still think 250 PSI (high side) is too high. I like to see the high side only at about 150 PSI.

I was thinking that maybe your high side is going up TOO high and cutting out the compressor at...
Forum: maintenance & nonperformance 06-16-2020, 06:58 PM
Replies: 19
Views: 819
Posted By ZVOLV
Exclamation You can also close all the windows, turn the...

You can also close all the windows, turn the blower on high, recirculate OFF, and spray around outside with soapy water.
Forum: maintenance & nonperformance 06-16-2020, 01:00 PM
Replies: 23
Views: 779
Posted By ZVOLV
It could be overcharged. 240 PSI is high.

It could be overcharged. 240 PSI is high.
Forum: maintenance & nonperformance 06-14-2020, 05:13 PM
Replies: 11
Views: 654
Posted By ZVOLV
I pulled my rearmost bearing cap and found my cam...

I pulled my rearmost bearing cap and found my cam and " bearing" surfaces wiped. I was not happy.
Forum: maintenance & nonperformance 06-13-2020, 05:24 PM
Replies: 10
Views: 659
Posted By ZVOLV
The sensor will read low voltage,until the...

The sensor will read low voltage,until the sensor, and the engine, warm up and the ECM enters closed loop. Open loop is when the car is started cold and it ignores the O2 sensor.

Once the O2...
Forum: maintenance & nonperformance 06-10-2020, 01:32 AM
Replies: 5
Views: 513
Posted By ZVOLV
There could be excessive resistance in one side...

There could be excessive resistance in one side of the circuit. The relay compares current flow from one side of the car to the other and if it varies enough= warning lamp.

Usually on the wagon,...
Forum: maintenance & nonperformance 06-10-2020, 01:26 AM
Replies: 5
Views: 507
Posted By ZVOLV
The NO REVERSE is a classic AisinWarner...

The NO REVERSE is a classic AisinWarner transmission failure on these cars. That particular clutch pack probably failed.

I wouldn't spend the money on a fluid flush. I would drop the pan, inspect...
Forum: maintenance & nonperformance 06-09-2020, 06:03 PM
Replies: 5
Views: 507
Posted By ZVOLV
Sounds like a fried clutch pack.

Sounds like a fried clutch pack.
Forum: performance & modifications 06-07-2020, 02:25 PM
Replies: 13
Views: 1,193
Posted By ZVOLV
Make....

Make....
Forum: maintenance & nonperformance 06-05-2020, 06:26 PM
Replies: 3
Views: 489
Posted By ZVOLV
Try disconnecting the battery. It will reboot the...

Try disconnecting the battery. It will reboot the ECU and it will relearn the fuel trims, timing, and idle speed. It is worth a try.
Forum: maintenance & nonperformance 06-05-2020, 06:16 PM
Replies: 14
Views: 689
Posted By ZVOLV
Look at the pulley from the side of the car and...

Look at the pulley from the side of the car and you will see how misaligned it is. The bushings are probably all shot by now.

You want to squirt some oil in there too. I would add an ounce, maybe...
Forum: maintenance & nonperformance 06-05-2020, 06:11 PM
Replies: 5
Views: 572
Posted By ZVOLV
It has been a while, but I looked into this for a...

It has been a while, but I looked into this for a 740 and there was a change in the system somewhere around 1988, I think. The terminals were NOT in the same position. I think it was only 4 wires, so...
Forum: maintenance & nonperformance 05-29-2020, 08:28 AM
Replies: 11
Views: 782
Posted By ZVOLV
I have replaced blown out torque rod bushings in...

I have replaced blown out torque rod bushings in a 240 and it brought the rear of the vehicle back up significantly. The previous owner installed overload springs and it didn't fix the sag.
Forum: maintenance & nonperformance 05-29-2020, 08:24 AM
Replies: 31
Views: 1,604
Posted By ZVOLV
MAF's are one of the sensors that you can't...

MAF's are one of the sensors that you can't really test without just trying another one. They can read "in spec" but still be skewed enough that the mixture will be off. Especially on these old EFI...
Forum: maintenance & nonperformance 05-29-2020, 08:16 AM
Replies: 3
Views: 610
Posted By ZVOLV
Check for a torn intake duct. They rub on the...

Check for a torn intake duct. They rub on the strut tower commonly when installed incorrectly.

Spray around with brake cleaner and listen for a change in idle= airleak.


The 1992 LH2.4...
Forum: showroom 05-29-2020, 08:12 AM
Replies: 52
Views: 31,135
Posted By ZVOLV
I would just bypass the controller and rig up a...

I would just bypass the controller and rig up a relay to operate each motor.
Forum: projects & restorations 05-29-2020, 08:09 AM
Replies: 161
Views: 60,951
Posted By ZVOLV
Yep, you opened up the bottom end. Your engine...

Yep, you opened up the bottom end. Your engine will be stronger with good compression and will burn less oil.

How did you make measurements? With what tools?
Forum: maintenance & nonperformance 05-29-2020, 07:57 AM
Replies: 14
Views: 1,166
Posted By ZVOLV
The shield just helps protect the circuit from...

The shield just helps protect the circuit from EMI (interference) from other components such as the ignition wires. I wouldn't be too worried about it, but a pic would help.

You could get a...
Forum: maintenance & nonperformance 05-29-2020, 06:56 AM
Replies: 31
Views: 1,604
Posted By ZVOLV
I think you are looking in the wrong directly...

I think you are looking in the wrong directly currently. The engine speed circuit obviously is working because the car is running.

The manuals were written for these cars before modern test...
Forum: maintenance & nonperformance 05-29-2020, 06:43 AM
Replies: 31
Views: 1,604
Posted By ZVOLV
MAFs are one of the sensors that can give a...

MAFs are one of the sensors that can give a reading that is "within range" but the vehicle may not run correctly.
Forum: maintenance & nonperformance 05-29-2020, 06:20 AM
Replies: 31
Views: 1,604
Posted By ZVOLV
I think you may need to look somewhere else for...

I think you may need to look somewhere else for your problem. Maybe try a few different MAF's.
Forum: maintenance & nonperformance 05-29-2020, 05:13 AM
Replies: 31
Views: 1,604
Posted By ZVOLV
That screenshot by Bobyx is from a Hantek 1008...

That screenshot by Bobyx is from a Hantek 1008 scope. I have one I bought years ago for $80. Hopefully the firmware/software is better now. It works if you can get it out of Chinese.

I use a...
Forum: performance & modifications 05-28-2020, 04:18 AM
Replies: 7
Views: 1,006
Posted By ZVOLV
I wouldn't pay the shipping. Keep it for a...

I wouldn't pay the shipping.

Keep it for a core?
Forum: performance & modifications 05-28-2020, 04:17 AM
Replies: 24
Views: 1,072
Posted By ZVOLV
I say pump first! Needs maor poll!!

I say pump first!

Needs maor poll!!
Forum: maintenance & nonperformance 05-27-2020, 03:30 PM
Replies: 9
Views: 796
Posted By ZVOLV
Wiggle test the wiring and see if it stalls.

Wiggle test the wiring and see if it stalls.
Forum: maintenance & nonperformance 05-27-2020, 03:28 PM
Replies: 14
Views: 1,166
Posted By ZVOLV
Lean will cause this.

Lean will cause this.
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