Apr 022018
 

2007 Mazda CX-7

Radio won’t work


Check fuses first. Then trace wiring. If everything checks out, replace the radio. Use the wiring diagram provided below to assist in your troubleshooting. If the radio comes on but just no sound, your radio thinks its being stolen. You will need the radio code. If it is not in your owners manual call the dealer.

2007 Mazda CX-7 Radio wiring diagram

2007-mazda-cx-7-sound-systems-w-base-w-o-navigation-1-of-1
Mar 302018
 

2003 VW Beetle

I have a 2003 VW beetle with 68k miles on it. Some months ago while driving on a hwy the car felt like it was going to die and a code of EPC came on. I took it to a mechanic and they couldn’t find any issue. Seemed fine but to date several times in the past week, the car feels like it is not getting gas and trying to stall, but no code. What to do?


EPC warning light comes on

Since you did have an EPC code we can look into that issue. Odds are they are related.

Electronic Power Control System (EPC)

EPC diagram for VW Beetle

EPC Light on Volkswagen

The EPC warning light, also known as the Electronic Power Control warning light, is a vehicle warning indicator that indicates a problem with your Volkswagen’s throttle system, such as with the throttle pedal, throttle body, traction control, or cruise control. However, the EPC light can indicate other problems with your Volkswagen, as well. Continue reading for how to fix the EPC light on a Volkswagen.

EPC Car Warning Light

When the EPC light comes on in your Volkswagen, it’s a signal that the vehicle needs to be repaired immediately. Your Volkswagen should have enough power to drive to a car dealership or repair shop, but it should not be driven anywhere else. Your vehicle’s throttle may be limited in power as a built-in mechanism to protect the engine.

How to Fix EPC Light on a VW

The EPC warning light can indicate a variety of problems with your vehicle, some of which can be extremely harmful to your engine. It’s important to get your Volkswagen into a repair shop as soon as possible if it’s displaying the EPC light.

Source: schworervolkswagen.com

Mar 282018
 

2011 Chrysler 200

Air conditioning problem

Why do I hear water swoshing when my a\c is on but not when not when it is off? Also when on I hear a strange noise when I turn left but not when ot is off. What is this ? Changed out blower motor and resistor.


Could be the normal sounds of a properly functioning R134a air conditioning system. If this is an abnormal sound then you may need to do some investigating in order to narrow down the problem.

but if you hear sloshing (especially on cornering) and finding that your carpets are wet, then check the plenum chamber where the drain holes get blocked on some cars.

Mar 282018
 

2007 Toyota Rav 4

We changed the wheel hub assembly because we expected a low humming noise to be a bad wheel bearing. After changing it, we drove home about 30 miles. The noise was still there and by the time we got home it was louder than ever. And I was scared to drive over 15 mph. I jacked the tire up (passenger rear) and tire was wiggling as if it had a bad wheel bearing. The funny thing is the tire didn’t even wiggle before we changed the Hub assembly. So I am guessing maybe the cv shaft nut wasn’t tightened enough, I don’t know. And if it wasn’t tightened enough or came loose driving could it have damaged the wheel bearing in the hub assembly?

Does it sound like it wasn’t correctly tightened? Also, when I removed the tire and was wiggling the hub it wasn’t tight trying to rock it back and forth. But there was a little play when pushing and pulling it in and out.


Hub bearing noise

Sounds like you shouldn’t have driven it home. But instead circled the block and made the shop aware that the noise was still there. They may have been able to save the part and you some time. At this point you are going to need to take it back(30 miles). And I hope you got a good warranty because you are about to use it.

The shop that performed the repair will take a close look and be able to tell if the new part simply failed or if it was incorrectly installed. Either way, it should not be loose nor would it come loose on its own.

Mar 272018
 

 

Honda Accord

So I just got my first car, a 2008 Honda Accord Ex-l with 55k miles on it from an elderly couple. When I first bought it everything was fine. As I started to drive more and more I started having problems with the transmission.

First off, Its pretty hard to accelerate and when i do i feel the engine working hard to get up to around 2,500/3k rpm, then it gets smoother when it drops down to about 1,500rpm (is this normal?).

Car jerks a little forward

Another thing (my main concern) is that once I’m going anywhere from 30-60 mph and i take my foot off the gas and just let the car glide, as the rpm needle goes down and hits just below the 1k mark the needle jump up to around 1.5k and the car jerks a little forward. (when I’m going around 60-80, it might do this twice). What does this mean? Is that normal?
The last thing might be the same problem but I’m just gonna ask anyways.. Also when I’m breaking from most speeds, once the needle goes below the 1k mark the needle also jumps up (usually between the 500 and the 1k rpm mark).
Whats going on lol?
Ive already changed my break pads and rotors, changed my engine oil (not transmission), and got a fuel injector cleaner. (Not because of this problem, but they needed to be changed anyway.)
Also, whenever i turn my car on I always hear fluid dripping/gurgulling right behind the dashboard. What is causing that?
Thank you very much! Appreciate your service!

 


VSS? Check engine light?

Car jerking forward? Needle bouncing may all be related to what ever is going on. The needle bouncing isn’t much of a concern as long as the engine isn’t dying. The needle is moving around because the IAC (Idle Air Control) is doing its job.

The first place to start would be to have the check engine light codes scanned. Any present codes will assist in directing us toward the problem. This saves time and money. Also keeps us from trying to guess. Most any local auto parts stores will scan the codes for free. Post the codes below in the comments.

Mar 212018
 

Hyundai Elantra

I have two codes, one for fuel tank pressure sensor and for oxygen sensor bank one. Ive replaced ftps and both oxygen sensors twice and still get the codes. could there be something else wrong that wont kick these codes out?


First I will need the two codes… post in the comments below.

Mar 202018
 

Toyota Camry

My 2010 Toyota Hybrid has Diagnostic Trouble Code P3065 and I am not sure what it is. What does this code mean?


There are engine codes and battery codes. The battery they are referring to is the Hybrid battery. This code is related to the battery.

If the temperature indicated by the battery temperature sensor is lower than the standard level (open), or is higher than the standard level (short), the battery smart unit interprets this as a sensor malfunction. If the battery smart unit detects that the HV battery temperature is out of normal range or its value is abnormal, the HV control ECU will illuminate the MIL and set a DTC.

Toyota Code P3065

Hybrid Battery Temperature Sensor Range

Code P3065 Description

The battery temperature sensors are provided at 4 locations on the bottom of the HV battery. The resistance of the thermistor, which is built into each battery temperature sensor, varies in accordance with changes in the HV battery temperature. The lower the battery temperature, the higher the thermistor resistance. Conversely, the higher the temperature. the lower the resistance. The battery smart unit uses the battery temperature sensors to detect the HV battery temperature, and sends the detected values to the hybrid vehicle control ECU. Based on the se results, the hybrid vehicle control ECU controls the blower fan.(The blower fan starts when the HV battery temperature rises above a predetermined level.)

2010-toyota-camry-hybrid-battery-sensor-chart

Mar 152018
 

Ford Explorer Sport Trac

Lately my truck has been having problems. When I start it up in the morning, it gives me high rpms, but no movement for a few seconds. This is only made worse by braking. The truck comes to a complete stop and I have to get up to about 3500 rpms to get it moving again.

Also, when I leave work in the afternoon I have problems. When I put it in reverse, without touching the gas pedal it will have about 1000 rpms and roll back easily. The same problem as I mentioned above happens when I put it in drive. High rpms and no movement for the first few seconds of driving.

Any ideas?


No movement

This sounds like you are experiencing transmission related issues. First thing to do would be to check the transmission fluid level.

If the transmission fluid level is low, top it off and test. Check for and fix leaks. If the transmission fluid level is full and has a dark color it may be in need of a rebuild.

Mar 152018
 

2000 Chevy Blazer

All of the sudden started getting a knock noise and it wants to hesitate when you take off. I noticed oil towards back of engine but still have good oil pressure. Its not getting hot and no chips in oil.


The oil leak is probably nothing more than just that, a leak. Anyway you look at a noise it doesn’t look good.

Knock Noise

Lets figure out if the knock noise is internal or external from the engine. The easiest way to achieve this would be to remove the serpentine belt and start the engine. Only allow the engine to run long enough to determine if the knock no longer remains. If the noise is gone, you know the knock is external. You can check the external noise by spinning the pulleys before installing the serpentine belt.

Internal engine knock noise

2000-chevy-blazer-crankshaft-bearings

  • Knocking noise is present at engine idle. Generally disappears as engine rpms increase. This is most commonly a cause of faulty engine main bearings.
  • Knocking noise increases and sometimes gets louder as engine rpms increase. Generally the noise goes away or is faint at engine idle. This is most commonly a cause of faulty engine rod bearings.
  • On rare occasions the balance shaft bearings have been known to make a knock noise.

2000-chevy-blazer-blance-shaft

In either case you are going to end up rebuilding or replacing the engine to cure the issue.

Mar 142018
 

1995 BMW 740i

My BMW has a check engine light on and it runs really rough at an idle. I smell a gaseous odor like it is “loading up” at an idle. What are the possible causes of this?


No reason at all to guess since the check engine light is on. Have the codes scanned and post the codes below in the comments. Just about any local auto parts store will scan you codes for free.