Volvo

Have Volvo Questions? Ask a Volvo Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Volvo
This answer was rated:

I have readiness monitors that will not set. I have a 1998

Volvo S90. The O2...
I have readiness monitors that will not set. I have a 1998 Volvo S90. The O2, evap and catalyst have never been ready since June, while I have been trying to pass Wisconsin emissions testing. I have on order a new genuine Volvo upstream O2 sensor, which I expect will allow the O2 monitor to set in the future. The secondary air monitor shown an error every time it has set. It is not ready as of last test. The secondary air pump works, the check valve into which the secondary air pump directs air opens with vacuum in testing. It had been corroded in place until about a week ago which I was unaware of. I need to get the secondary air and one of the other 3 monitors to set without a MIL light in order to finally pass emissions. I can have 2 unset monitors and pass.
JA: Have you located all of the vehicle's oxygen sensors? Are the wires leading to and from each intact and in good shape?
Customer: Yes
JA: Are you fixing your S90 yourself? What have you tried so far?
Customer: A new genuine Volvo secondary air pump was installed. It turns out the old one was working. The bracket cushions and motor installation cushions were all replaced (6 cushions total). The air check valve was unfrozen with liquid wrench and reinstalled. The solenoid was removed and tested and appears to be functional. The secondary air relay was replaced with a new genuine Volvo relay. The downstream O2 sensor has been replaced twice, most recently with a Walker manufactured item.
JA: Anything else you want the mechanic to know before I connect you?
Customer: The heated O2 monitor has set ready with both of the new sensors installed. The vacuum line from the solenoid to the air check valve was checked for patency and it seems clear of obstruction. the vacuum line from the manifold to the solenoid as a check valve with black side to the engine and white side to the solenoid.
Show More
Show Less
Ask Your Own Volvo Question
Answered in 9 hours by:
9/19/2017
Eric
Eric, Automotive Repair Shop Manager
Category: Volvo
Satisfied Customers: 32,773
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified

HI,

I am sorry that you have not been helped yet. I just came online and saw your question

Ok, at this point is the check engine light on?

And what drive cycle are you performing to set the monitors to ready state

Ask Your Own Volvo Question
Customer reply replied 2 months ago
Drive Cycle
1. Start the engine and accelerate to approximately 1500-2000 rpm. 2. Drive for 6 minutes at 1500-2000 rpm. 3. Stop the vehicle and remain at idle in drive for 70 seconds. 4. Accelerate to at least 45mph and drive for 5 minutes at 1800-2200 rpm. 5. Stop the vehicle and remain at idle in drive for 60 seconds. 6. Accelerate to at least 45 mph and drive for 4 minutes at 1800-2200 rpm. 7. Stop the vehicle and remain at idle in drive for 60 seconds. 8. Park the vehicle and turn off the engine.
Customer reply replied 2 months ago
No check engine light

Hi,

Put the vehicle on a lift or on 4 jack stands and do the following drive cycle. It is for GMs but I have found it work great on Volvos. getting all the wheels off the ground allow you to do the drive cycle precisely as stated without worrying about traffic issues interfering with it

Cold Start. In order to be classified as a cold start the engine coolant temperature must be below 122°F (50°C) and within 11°F (6°C) of the ambient air temperature at startup.
Do not leave the key in prior to the cold start or the heated oxygen sensor diagnostic may not run.
Idle. The engine must be run for two and a half minutes with the air conditioner on and rear defroster on. The more electrical load you can apply the better. This will test the O2 heater, Passive Air, Purge "No Flow", Misfire, and - if closed loop is achieved- Fuel Trim.
Accelerate. Turn off the air conditioner and all the other loads and apply half throttle until 55mph (88km/hr) is reached. During this time the Misfire, Fuel Trim, and Purge Flow diagnostics will be performed.
Hold Steady Speed. Hold a steady speed of 55mph (88km/hr) for 3 minutes. During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed.
Decelerate. Let off the accelerator pedal. Do not shift, touch the brake or clutch. It is important to let the vehicle coast along gradually slowing down to 20 mph (32km/hr). During this time the EGR, Purge and Fuel Trim diagnostics will be performed.
Accelerate. Accelerate at 3/4 throttle until 55-60mph (88-96 km/hr). This will perform the same diagnostics as in step 3.
Hold Steady Speed. Hold a steady speed of 55mph (88km/hr) for five minutes. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst.
Decelerate. This will perform the same diagnostics as in step 5. Again, don't press the clutch or brakes or shift gears.

Ask Your Own Volvo Question
Customer reply replied 2 months ago
The drive cycle I gave you I understand to be specific for Volvo and published in a Volvo Technical bulletin.
I was expecting to talk with a Volvo expert.
Customer reply replied 2 months ago
How to do a drive cycle to set monitors ready is not the question. Did you read my long and detailed explanation?
Customer reply replied 2 months ago
Are you there?

HI,

I am a Volvo expert. I am just telling you that on these older Volvos, I have found that the GM drive cycle works better.

Yes, I read your entire post. With the check engine light not on and all the repairs done at this point, the monitors should set to ready at this point. The only reason they wont would be low voltage condition or a marginal converter

Ask Your Own Volvo Question
Customer reply replied 2 months ago
Is a vacuum leak in evap likely?
Customer reply replied 2 months ago
What level voltage is too low and what do you mean by the converter, is that the alternator?

HI,

A vacuum leak in the evap system would set a code such as P0456

anything under 10.5v to the ecm would cause it to not set the monitors.

by converter, I mean the catalytic converter

Ask Your Own Volvo Question
Customer reply replied 2 months ago
Is it possible the ecm needs a software download. Have you seen that as an issue, ever, in a similar situation.
Customer reply replied 2 months ago
I have emissions testing documentation for the vehicle for the last 4 years including 3 different registration cycle. The 3 monitors I mentioned earlier have never shown ready: evap, catalyst, O2.

Hi,

I cannot imagine a 98 would need a software update for this. I have never encountered it.

Yes, I see trouble cars all the time that I have to go thru 4 or*****cycles to get the monitors to set. The older they are, the harder they are at times to set the monitors.

Ask Your Own Volvo Question
Customer reply replied 2 months ago
I am hoping that the new upstream O2 sensor give me the last needed monitor, provided the secondary air sensor does not throw a light the next time it sets. I am retired and do not drive all that much.
Customer reply replied 2 months ago
I will try the GM drive cycle if the Volvo one does not work, after the next repair, the O2 sensor. Thanks. I had already seen the GM drive cycle online, but I have not tried it. Thanks, ***** *****

You are welcome

Eric
Eric, Automotive Repair Shop Manager
Category: Volvo
Satisfied Customers: 32,773
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified
Eric and 87 other Volvo Specialists are ready to help you
Ask your own question now
Ask Eric Your Own Question
Eric
Eric
Eric, Automotive Repair Shop Manager
Category: Volvo
Satisfied Customers: 32,773
32,773 Satisfied Customers
Experience: 20+ yrs. experience as repair shop manager and technician.

Eric is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time!

Paul MCorpus Christi, TX

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

< Previous | Next >

Meet the Experts:

Enes

Enes

VOLVO Master Technician

4,911 satisfied customers

18+YEARS WITH VOLVO AS THE MASTER VOLVO MECHANIC&Ase

Andy

Andy

Volvo Expert Technician

3,740 satisfied customers

One of only a handful of ACTUAL Volvo dealership technicians on JA, ASE Master Certified with L1

volvoexpert1

volvoexpert1

ASE Certified Technician

1,001 satisfied customers

Volvo Master Technician with 15 years excusively with Volvos. Also ASE L1certified for over 10 years.

dramey

dramey

ASE Certified Technician

669 satisfied customers

have worked on volvo's for 4 years and am a ase master mechanic. current shop foreman

Chris (aka-Moose)

Chris (aka-Moose)

Technician

526 satisfied customers

16 years of experience

Tim Mohr

Tim Mohr

ASE MASTER TECH

518 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Jim B

Jim B

ASE Certified Technician

504 satisfied customers

40 years Import and domestic AAA Approved Shop owner 30 yrs

< Previous | Next >

Related Volvo Questions
Just had the red triangle, low coolant, stop engine safely
Just had the red triangle, low coolant, stop engine safely today … read more
Gunvir Singh
Gunvir Singh
1,702 satisfied customers
Just had coolant changed at Firestone yesterday on Volvo S80
just had coolant changed at Firestone yesterday on Volvo S80 - today I'm getting message that coolant level is low, stop engine. I can see the reservoir is full of clean green coolant. should I go bac… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
My wife's 1994 940 Volvo has a braking issue. Hard to
My wife's 1994 940 Volvo has a braking issue. Hard to understand what exactly except it is not consistent -- there is unevenness of braking. I think the pedal feels softer. What is quite apparent when… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Said coolant was low and to stop safely. does that mean I
said coolant was low and to stop safely. does that mean I have a leak … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
The low coolant warning light is on in my XC90 5 cyl. Low
The low coolant warning light is on in my XC90 5 cyl … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
2001 volvov70 3rd brake light not worken. It full. V70 all
2001 volvov70 3rd brake light not worken JA: Have you checked the brake fluid? How's the level and when was it last changed? Customer: it full JA: What is the model of your '01 Volvo? Customer: v70 al… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
1995 volvo 850, no rear brake pressure. Rear brake disks
1995 volvo 850, no rear brake pressure. Rear brake disks show no sign of touching of pads. … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
290 satisfied customers
Coolant has been leaking from the reservoir for some time.
Coolant has been leaking from the reservoir for some time. Tank was old and brittle. Sealed the leaks several times but new leaks in different places kept popping up. Replaced the tank with new one. E… read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
Changed brake pads in front, now brakes are spongy. if
changed brake pads in front, now brakes are spongy. if engine is stopped brakes are hard, start the engine and it moves to the floor. … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
1,882 satisfied customers
I am on the freeway in California coolant low stop safely
I am on the freeway in California coolant low stop safely warning light came on. Pulled over at a gas station and put in a 50/50 mix of water and engine coolant in. Warning light is still on. Can u te… read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
Not blowing cold air, fan not working, had coolant tank
the airconditioning works just no air coming from vents… read more
Eric
Eric
Auto Technician
589 satisfied customers
What type of coolant is used for a 2002 Volvo s60? my engine
what type of coolant is used for a 2002 Volvo s60? my engine light went on this morning … read more
camerontech
camerontech
20 year experience diagnostic technician
class a
536 satisfied customers
2001 Volvo V70 wagon - leaks coolant sometimes under left
2001 Volvo V70 wagon - leaks coolant sometimes under left side of engine. Have had a pressure test - no leaks or loss of pressure.… read more
rpmdiag
rpmdiag
High school
7,107 satisfied customers
Having trouble with a coolant leak. Coolant reservoir will
Having trouble with a coolant leak. Coolant reservoir will go from full to empty over the course of a few days with mild daily driving in the city and on highway. Car will drive long distances (283 mi… read more
Michael Koster
Michael Koster
13 satisfied customers
Is it possible that engine oil is leaking into the coolant
Is it possible that engine oil is leaking into the coolant from the radiator on a Volvo V70 2002?… read more
Eric
Eric
Automotive Repair Shop Manager
32,773 satisfied customers
I have engine oil in my coolant reservoir, About 4 month
I may attempt to switch out radiator if I can be sure that would fix the problem … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
At minus 5 degrees, low coolant stop engine light comes on
at minus 5 degrees, low coolant stop engine light comes on when I start car. it goes off in less than a minute after rah car starts and does not come back on … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,000 satisfied customers
Engine coolant level low. Turn off engine! 49731, 2014 S60,
Engine coolant level low. Turn off engine! JA: How many miles on the car? How has your mileage been lately? Customer: 49731 JA: What is the model/year of your Volvo? Customer: 2014 S60 JA: Are you fix… read more
Eric
Eric
Automotive Repair Shop Manager
32,773 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x