How JustAnswer Works:

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

Ask Need4Swede Your Own Question

Need4Swede, ASE Certified Technician
Category: Volvo
Satisfied Customers: 186
Experience:  ASE Master (A1-A8) and L1 Advanced Diagnostic. Volvo Certified, currently employed by Volvo dealer
Type Your Volvo Question Here...
Need4Swede is online now
A new question is answered every 9 seconds

1999 Volvo: wagon..Car started and ran..ran fine..gas pedal

Resolved Question:

1999 Volvo V70R wagon. Just had battery replaced (emergency, out of town) today. Car started and ran fine for about 30 minutes, then gas pedal had no response, car will idle along but when the gas pedal is depressed it will not respond. Stopped car for a few minutes, restarted had gas pedal response for about 15 seconds, then car went to idle again. Tow truck is on the way but need help. Nearest dealer is 90 miles away! That''s a towing bill!
Submitted: 7 years ago.
Category: Volvo
Expert:  Need4Swede replied 7 years ago.

Hello and thanks for choosing!

This sounds a lot like a throttle module problem. There is one thing you can try and that's to disconnect the negative terminal on the battery, then touch the negative cable to the positive terminal for about 30 seconds to reset the system. Try to start and run it after that. This sounds like something has lost communication for long enough to get it out of phase with the engine computer. Typically this is sign of a throttle module problem cropping up. Did you get an "ETS" light on the dash when this happened?

Customer: replied 7 years ago.
Reply to Need4Swede's Post: I just completed your suggestion. The car started and for a few moments I had response from the accelerator, then I heard an audible click from the engine compartment (I had the hood open and an assistant standing there) then there was no longer a response from the accelerator. I shut the engine off and tried to restart only to get a "clicking" sound from the engine compartment and the engine did not start. I have waited 30 minutes and am still getting the clicking sound. The ETS light has never come on during this episode. Any ideas??
Expert:  Need4Swede replied 7 years ago.
You may have a main relay going. It sounds like it's de-energizing and cutting power to the ETM (throttle module) or ECM (engine computer). There is a fuse box in the engine compartment right next to the driver's side shock tower. The main relay is in there. If you turn the cover over it says which position is which. I don't have the wiring diagram in front of me here at the house. You can try tapping on the relay when you try starting it, but it's easier to find another relay that matches and swap them out. There are a couple other matching relays that perform different functions that match the main relay. Try switching them and see if it runs.
Customer: replied 7 years ago.
Reply to Need4Swede's Post: I tried switching them to no avail. I did notice that the main relay was yellow in color and said "made in Spain" and the others were all black and had the Volvo logo on them. I found the diagram and I am heading to town to see if I can find replacements for the main one and the starter one. I will try to replace them and see what happens. Could changing the battery out cause a problem? My wife had it done at an Autozone when stranded in Burlington, Iowa.
Expert:  Need4Swede replied 7 years ago.

One of them should be a yellow one. That's the main relay. Check the base of the relay and see if any of the terminals are discolored. If they are, it's probably not working correctly.

Having someone change a battery at Autozone is like playing Russian roulette. If they hooked the terminals up backwards, that could easily cause the problem your having. Hooking up the terminals backwards even for a second or two plays heck with the software in any of the modules. Hope that's not the case.

Hate to say it, but you may have to have it towed to someone that can hook it up to a diagnostic computer and read faults. My recommendation would be a dealer as they are the only ones that can download software if it needs it. Also, if it's a throttle module problem, they are covered under an extended warranty for 10 years or 200,000 miles. Having that done somewhere else can cost close to a grand. If the dealer finds a problem with the throttle (which is what I'm suspecting), they'll replace it under warranty. BIG savings if that's the issue. The symptoms you're describing are typical of a throttle module failing, losing it's power supply or losing the software. Best to rule the power end of the equation out before having to tow the car.



Need4Swede, ASE Certified Technician
Category: Volvo
Satisfied Customers: 186
Experience: ASE Master (A1-A8) and L1 Advanced Diagnostic. Volvo Certified, currently employed by Volvo dealer
Need4Swede and other Volvo Specialists are ready to help you

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... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...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 M Corpus Christi, TX
< Previous | Next >
  • The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time! Paul M Corpus 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 P Elm 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. Phil Marysville, 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. Charles Walnut 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!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, do indeed know your stuff. Jim Castleberry, FL

Meet The Experts:

  • Enes


    VOLVO Master Technician

    Satisfied Customers:

< Last | Next >
  • Enes's Avatar


    VOLVO Master Technician

    Satisfied Customers:

  • Andy's Avatar


    Volvo Expert Technician

    Satisfied Customers:

    One of only a handful of ACTUAL Volvo dealership technicians on JA, ASE Master Certified with L1
  • volvoexpert1's Avatar


    ASE Certified Technician

    Satisfied Customers:

    Volvo Master Technician with 15 years excusively with Volvos. Also ASE L1certified for over 10 years.
  • dramey's Avatar


    ASE Certified Technician

    Satisfied Customers:

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

    Jim B

    ASE Certified Technician

    Satisfied Customers:

    40 years Import and domestic AAA Approved Shop owner 30 yrs
  • Tim Mohr's Avatar

    Tim Mohr


    Satisfied Customers:

  • Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)


    Satisfied Customers:

    16 years of experience