Forum Replies Created

Viewing 15 posts - 1 through 15 (of 110 total)
  • Author
    Posts
  • in reply to: Glue vs welds #633
    admin
    Keymaster

    Adhesives are basically made of plastic, and they have a fraction of the strength of Aluminum or steel, but make up for that in area. Each spot-weld is fairly small, but you can increase the area or number of them.

    in reply to: Glue vs welds #631
    admin
    Keymaster

    The strength of any glue is not even close to that of a weld. Glues are effective in sheet-metal seams to supplement spot-welds and protect against corrosion. Glues can be effective where the total area of the glued joint can be large (like in a long seam) to make up for the relative weakness of the glue.

    in reply to: Hybrid ABS module repair #628
    admin
    Keymaster

    This is a bit outside my expertise, but if the Prius ABS module does not carry the same part number as your SUV, it is extremely unlikely that it is compatible with your braking system.

    in reply to: Can a bent strut be straightened? #624
    admin
    Keymaster

    If you mean a McPherson strut, the answer is no. The long shiny rod must be perfectly straight and smooth to work as a shock absorber.

    in reply to: Dog Tracking #620
    admin
    Keymaster

    the issue can be misalignment due to bent suspension components, or worn out suspension bushings or bearings. the first thing I would so is get the vehicle lifted with the wheels off and inspect everything in the front and rear suspensions. If you don’t see anything obvious, try to align all 4 wheels.

    in reply to: Idle vibrations #618
    admin
    Keymaster

    It could be many things. To begin diagnosis, the very first thing to do is hookup an OBD reader at the OBD (Onboard Diagnostics) connector under the dash and read any stored codes. Even if the check engine light is not lit, any engine misfire condition should trip a fault code. Starting this way is much more sensible than just replacing parts.

    Dave

    in reply to: Can I delete rear roll bar? #615
    admin
    Keymaster

    Sorry to hear that your ideas are not being considered. Either your ideas are not technically valid (his POV) or he is just the wrong person for you to engage on the subject with. Did he tell you why?

    in reply to: Can I delete rear roll bar? #609
    admin
    Keymaster

    Removing the rear anti-roll bar will affect the handling of the car. It will increase the tendency to understeer (significantly) and lower the responsiveness of the car to steering inputs. This is not necessarily unsafe, but you might not like the results. This will be noticed when cornering.

    Dave

    in reply to: Wheel bearing issues. #603
    admin
    Keymaster

    I would strongly recommend against trying to disable the ABS on a Hybrid vehicle. In a hybrid, the ABS and regenerative braking are integrated with each other and must transition smoothly from regenerative to friction and then to ABS braking. It is all one system. Also there is a safety issue with disabling the ABS and you never know when an emergency situation will arise.

    When you try to replace the wheel bearing, are you using the factory shop manual as reference?

    in reply to: Motorsports #592
    admin
    Keymaster

    Good question… Part of the answer is that the European exotics have been around for a long time (60-100 years).

    Brand vs product: The quality and performance of the product is what builds the brand. Drive a Porsche, Ferrari or Lamborghini and this will become clear.

    Dave

    in reply to: Inline 4 Turbo vs V6 vs V8 #587
    admin
    Keymaster

    The basic reason for replacing v6 and v8’s with smaller displacement boosted 4-cylinder engines is fuel economy. Aside from going to Hybrid powertrains, there is not other way to get such large improvements in fuel efficiency (more than 10%). The basic reason why this works well is that the average amount of power that has to be delivered to the driving wheels is very low compared to the peak power needed for heavy acceleration or hill-climbing. A large sedan only needs about 10-12 HP sent to the drive-shafts to maintain 65mph on a level road. When you throttle a big engine down to 10 HP, it runs very inefficiently. Throttled engines waste energy in the form of pumping work, and large heavily throttled engines also waste a lot of energy in the form of internal friction and heat loss. It is much more efficient to get the same 10-12 HP out of a small-displacement engine that can be boosted for peak performance. It may seem counter-intuitive, but opening the throttle increases efficiency!
    Modern 3 and 4-cylinder turbocharged engines are designed and built for excellent durability at full-load. The other reason why many folks have a preference for a 6 or 8 cylinder engine is that they expect less noise and vibration, compared to a 4-cylinder. This is no longer true due to modern methods of isolating engine vibrations through sophisticated motor-mount and driveline technologies. Try any modern BMW, Lexus, or Mercedes 4-cylinder vehicle and you will see what I mean.

    in reply to: Check VSC light and Check Engine light on #585
    admin
    Keymaster

    You can test the PCV valve operation by pulling the pcv hose off the side of the valve that is not attached to the intake manifold and see if there is steady flow of air being drawn in to the valve. PCV valves tend to last a very long time.

    in reply to: Check VSC light and Check Engine light on #581
    admin
    Keymaster

    You should still fix the oil leak!

    in reply to: Check VSC light and Check Engine light on #578
    admin
    Keymaster

    Yes it will. Try inspecting the wire and connector to the sensor. Unplug and re-plug. The shop manual will show you how to diagnose whether it is the sensor or the wiring. Avoid driving until this is fixed or you risk damaging the catalytic converter. this could also be the source of misfiring.

    in reply to: Check VSC light and Check Engine light on #576
    admin
    Keymaster

    The CEL will not turn itself off even if you fix the problem, but you can do it with an inexpensive OBD reader.

    Dave

Viewing 15 posts - 1 through 15 (of 110 total)