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Forum: maintenance & nonperformance Yesterday, 01:21 PM
Replies: 24
Views: 325
Posted By ZVOLV
Voltage drop test the ground wire. They go bad....

Voltage drop test the ground wire. They go bad. Google how to do the test.

Does a test lamp illuminate on an UNPLUGGED exciter wire, key on?

Pull the voltage regulator. Anything left of the...
Forum: maintenance & nonperformance Yesterday, 01:15 PM
Replies: 7
Views: 132
Posted By ZVOLV
Have you tried cranking with the test lamp...

Have you tried cranking with the test lamp connected between positive and negative? Or were you saying no "pulse" due to a meter test you did?

A noid light works great here.

These cars are...
Forum: maintenance & nonperformance Yesterday, 11:42 AM
Replies: 7
Views: 132
Posted By ZVOLV
Do you have power to the injectors? What...

Do you have power to the injectors?

What are your test methods/tools?
Forum: maintenance & nonperformance Yesterday, 02:33 AM
Replies: 15
Views: 285
Posted By ZVOLV
Grounds are checked with a voltage drop test....

Grounds are checked with a voltage drop test. Google it.
Forum: maintenance & nonperformance 06-23-2019, 09:02 PM
Replies: 7
Views: 132
Posted By ZVOLV
The hall effect sensor wiring is a common point...

The hall effect sensor wiring is a common point of failure on these. It's in the distributor.

Do you have sprak?
Forum: maintenance & nonperformance 06-22-2019, 11:51 AM
Replies: 3
Views: 127
Posted By ZVOLV
It matters. The rear chamber is for NOX reduction.

It matters. The rear chamber is for NOX reduction.
Forum: maintenance & nonperformance 06-21-2019, 12:43 PM
Replies: 22
Views: 488
Posted By ZVOLV
I'm watching this thread. I have a 1991 740...

I'm watching this thread.

I have a 1991 740 Turbo and intermittently I have a bog down issue where the engine fails to rev. When I stay in the throttle the revs will actually drop. I can usually...
Forum: maintenance & nonperformance 06-20-2019, 07:49 PM
Replies: 15
Views: 285
Posted By ZVOLV
I've had pumps run on the bench when directly...

I've had pumps run on the bench when directly juiced up with battery, but not run in the car.


Original poster, click my sig for no start diag.

A crank sensor is also suspect on these cars....
Forum: maintenance & nonperformance 06-19-2019, 12:43 PM
Replies: 8
Views: 326
Posted By ZVOLV
I'm a pro and we use test lamps.

I'm a pro and we use test lamps.
Forum: performance & modifications 06-18-2019, 05:47 PM
Replies: 12
Views: 676
Posted By ZVOLV
I had a similar problem and I THINK it was due to...

I had a similar problem and I THINK it was due to excessive skimming such that the cam timing was too far off.
Forum: maintenance & nonperformance 06-18-2019, 01:38 PM
Replies: 8
Views: 373
Posted By ZVOLV
Did your local guy smoke test it? Probably not. ...

Did your local guy smoke test it? Probably not.

In CA the emissions test on that car includes a test of the EVAP system using a machine that goes into the fuel cap threads. Raw fuel vapors create...
Forum: maintenance & nonperformance 06-18-2019, 12:18 PM
Replies: 8
Views: 373
Posted By ZVOLV
At the shop, I would rack the car and bust out...

At the shop, I would rack the car and bust out the smoke machine and perform a smoke and flow test.

At home, I would pop the cap off the fuel tank access port and check for leaks at the sending...
Forum: performance & modifications 06-14-2019, 07:47 PM
Replies: 20
Views: 758
Posted By ZVOLV
Try a running compression test.

Try a running compression test.
Forum: maintenance & nonperformance 06-14-2019, 02:41 PM
Replies: 15
Views: 513
Posted By ZVOLV
Click my sig for a no start thread which contains...

Click my sig for a no start thread which contains tests you can try at home.
Forum: maintenance & nonperformance 06-14-2019, 02:34 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
A three way?

Google Fu

http://www.walkerexhaust.com/support/understanding-catalytic-converter/evolution-of-the-catalytic-converter
Forum: maintenance & nonperformance 06-14-2019, 02:05 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
It's called a THREE WAY catalytic converter. It...

It's called a THREE WAY catalytic converter. It cleans up THREE pollutants: CO, HC, and NOX.

A good kitty will knock all the numbers down close to zero.

Here is a smog dilema thread:
...
Forum: maintenance & nonperformance 06-13-2019, 01:31 PM
Replies: 69
Views: 2,025
Posted By ZVOLV
If you screw up you may be doing an evaporator! I...

If you screw up you may be doing an evaporator! I forget if the lines connect right to it.( No other connections) Be careful. These aluminum threads are easy to strip or crossthread.

Its a good...
Forum: maintenance & nonperformance 06-13-2019, 11:57 AM
Replies: 69
Views: 2,025
Posted By ZVOLV
I will take that as a "no". On my 1990 240 I...

I will take that as a "no".

On my 1990 240 I just added a R134 adapter on the back of the compressor, vacuumed it down, added the proper weight of refrigerant and some Ester oil and enjoyed the...
Forum: maintenance & nonperformance 06-13-2019, 11:14 AM
Replies: 69
Views: 2,025
Posted By ZVOLV
??? Have ya?

??? Have ya?
Forum: maintenance & nonperformance 06-12-2019, 05:25 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
Well done. Glad we could help.

Well done. Glad we could help.
Forum: maintenance & nonperformance 06-12-2019, 12:34 PM
Replies: 69
Views: 2,025
Posted By ZVOLV
You refill based on weight, not pressure.

You refill based on weight, not pressure.
Forum: maintenance & nonperformance 06-11-2019, 04:49 PM
Replies: 8
Views: 518
Posted By ZVOLV
Just look in thru the fork opening and see if...

Just look in thru the fork opening and see if there is an issue before pulling the trans.
Forum: maintenance & nonperformance 06-10-2019, 12:44 PM
Replies: 12
Views: 522
Posted By ZVOLV
7.0 on a 20K scale means 7000 ohms.

7.0 on a 20K scale means 7000 ohms.
Forum: maintenance & nonperformance 06-09-2019, 03:12 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
It was a direct injection modern V6. It just ran...

It was a direct injection modern V6. It just ran like crap and was very lean. +40%, or so, fuel trims with no air leaks found. Check engine.light on. I scratched my head for a while on that one until...
Forum: maintenance & nonperformance 06-09-2019, 11:12 AM
Replies: 88
Views: 2,318
Posted By ZVOLV
E85 Ethanol

Cali gas is already E10.

E85.... Old Volvo don't care! It won't hurt anything. It burns very clean. I plan to run it once I turn up the boost. It's equivalent to high octane gas, but it lowers the...
Forum: maintenance & nonperformance 06-08-2019, 03:59 PM
Replies: 14
Views: 942
Posted By ZVOLV
I think my mounts are so blown it's the reason my...

I think my mounts are so blown it's the reason my IPD sway won't clear the oil pan!
Forum: maintenance & nonperformance 06-08-2019, 01:27 PM
Replies: 8
Views: 396
Posted By ZVOLV
12345

12345
Forum: maintenance & nonperformance 06-08-2019, 12:27 PM
Replies: 12
Views: 640
Posted By ZVOLV
It's dry here in Southern California now too. I...

It's dry here in Southern California now too. I went this weekend and there wasn't a single 7 or 9 in there. I can't even get a sun visor for my car!


Here is how one day looked in 2010:
...
Forum: maintenance & nonperformance 06-08-2019, 12:01 PM
Replies: 1
Views: 307
Posted By ZVOLV
The extra wire is for a coil in a different...

The extra wire is for a coil in a different location. (firewall vs strut tower on a 700/760)


A washer goes between the bolt and the FRONT of the cam sprocket.


When you go to tear stuff down...
Forum: maintenance & nonperformance 06-07-2019, 11:48 AM
Replies: 7
Views: 387
Posted By ZVOLV
Run a filter too.

Run a filter too.
Forum: maintenance & nonperformance 06-06-2019, 01:40 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
That SHOULD get you thru. Post back.

That SHOULD get you thru. Post back.
Forum: maintenance & nonperformance 06-06-2019, 01:15 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
Good luck getting warranty $. The exhaust shop...

Good luck getting warranty $. The exhaust shop that did mine blew me off when I asked for a warranty and blamed the car.

5 gas analysis is tricky. The 25mph test is actually HALF the load of 15...
Forum: maintenance & nonperformance 06-06-2019, 12:52 PM
Replies: 88
Views: 2,318
Posted By ZVOLV
I put about 5 gallons in my 1991 740 Turbo before...

I put about 5 gallons in my 1991 740 Turbo before a smog recheck. I don't have the sheets, but I wanna say it helped.

Those aftermarket cats go bad quickly too. If it really comes down to it,...
Forum: maintenance & nonperformance 06-06-2019, 11:48 AM
Replies: 88
Views: 2,318
Posted By ZVOLV
I recall that post by Philski also. I would go...

I recall that post by Philski also. I would go with that.

High octane fuel helps too. I don't know how much Ethanol to recommend, but I would maybe try almost half of the fuel in the tank as E85.
Forum: maintenance & nonperformance 06-06-2019, 10:22 AM
Replies: 88
Views: 2,318
Posted By ZVOLV
The cat may be no good. Or wasn't lit off yet....

The cat may be no good. Or wasn't lit off yet. Drive it hard and then leave it running when you get to the station.

Another trick is run a good amount of E85 in the tank.

Ignition timing too...
Forum: maintenance & nonperformance 06-05-2019, 01:04 PM
Replies: 69
Views: 2,025
Posted By ZVOLV
Low you want 30-40. High you want about 150. ...

Low you want 30-40. High you want about 150.

Static is about 60 psi on both. The compressor kicks on and, if it's working, the low side goes down to 30-40 and the high should go to at least 150. ...
Forum: maintenance & nonperformance 06-05-2019, 12:01 AM
Replies: 12
Views: 737
Posted By ZVOLV
That high side is too high. You could be...

That high side is too high. You could be overcharged. Or a restriction. I would feel around and see if there's a spot that gets hot, but not right after the hot spot.

I use a machine that puts in...
Forum: maintenance & nonperformance 06-04-2019, 06:36 PM
Replies: 12
Views: 674
Posted By ZVOLV
I asked the shop alignment expert about this one...

I asked the shop alignment expert about this one and he said it looks like the rear axle is bent from accident damage based on your TOTAL TOE and THRUST ANGLE.

If your bushings we're bad, it...
Forum: maintenance & nonperformance 06-02-2019, 09:34 PM
Replies: 7
Views: 321
Posted By ZVOLV
I just grabbed a 1989 740 GLE and parted it out...

I just grabbed a 1989 740 GLE and parted it out in one day at the shop. I'm planning to turbo the engine and put it in my 1990 740. I'm using the cross member, booster, engine, and throttle cable....
Forum: maintenance & nonperformance 06-02-2019, 07:23 PM
Replies: 7
Views: 321
Posted By ZVOLV
Throttle cable, rear gears, booster.

Throttle cable, rear gears, booster.
Forum: maintenance & nonperformance 05-31-2019, 01:31 PM
Replies: 69
Views: 2,025
Posted By ZVOLV
The drier may have a fitting for a low side...

The drier may have a fitting for a low side SWITCH, not a service port.

Have you looked at the back of your compressor yet??
Forum: maintenance & nonperformance 05-31-2019, 12:50 PM
Replies: 9
Views: 643
Posted By ZVOLV
I would suspect fretting the the junction block...

I would suspect fretting the the junction block under the hood inside the driver side fender. I would pull the terminals and maybe add some dielectric grease.
Forum: maintenance & nonperformance 05-30-2019, 01:37 PM
Replies: 26
Views: 719
Posted By ZVOLV
I want to get one. I've seen my coworker use one...

I want to get one. I've seen my coworker use one and he knocked off all the goop QUICKLY.
Forum: maintenance & nonperformance 05-30-2019, 01:21 PM
Replies: 26
Views: 719
Posted By ZVOLV
I used a blow dryer as a heat gun and softened up...

I used a blow dryer as a heat gun and softened up the old adhesive and used a PLASTIC scraper on the painted surfaces. I used some kind of solvent at the end to get the last bit of sticky goop off....
Forum: maintenance & nonperformance 05-29-2019, 08:33 PM
Replies: 21
Views: 528
Posted By ZVOLV
Use a pressure tester

Use a pressure tester
Forum: maintenance & nonperformance 05-29-2019, 01:33 PM
Replies: 69
Views: 2,025
Posted By ZVOLV
You're the hack that vents to atmosphere.

You're the hack that vents to atmosphere.
Forum: maintenance & nonperformance 05-29-2019, 01:06 PM
Replies: 26
Views: 719
Posted By ZVOLV
The toughest part of the job is removing all the...

The toughest part of the job is removing all the old adhesive and foam. There is a neat attachment for an air tool, like a soft eraser, that spins old adhesive right off.

I used some 3M stuff...
Forum: maintenance & nonperformance 05-29-2019, 01:00 PM
Replies: 69
Views: 2,025
Posted By ZVOLV
I vacuum for 3 minutes.

I vacuum for 3 minutes.
Forum: maintenance & nonperformance 05-29-2019, 11:45 AM
Replies: 69
Views: 2,025
Posted By ZVOLV
Don't vent refrigerant to the atmoshpere. I use a...

Don't vent refrigerant to the atmoshpere. I use a machine to recover it. It actually goes back into other cars!

Honestly, if I were in your situation, I would just first inspect the system for...
Forum: maintenance & nonperformance 05-29-2019, 03:05 AM
Replies: 69
Views: 2,025
Posted By ZVOLV
I do my A/C work thru the low side. The...

I do my A/C work thru the low side. The compressor on my 1990 240 accepted the Parts-Store R134 adapter.

Recover, vac, charge, and see if it works.

People here seem to like envirosafe...
Showing results 1 to 50 of 300

 
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