Why does my Mazda 626 shake when idling?

Why does my Mazda 626 shake when idling?

I’ve got a 1999 Mazda 626 that shakes really badly when idling. It gets a little better when put into neutral, but not much. I’ve had two people suggest possibilities: This started happening in the last year or so. It started out being a mild shake when stopping at a stop light, but in the past 6 months or so it’s any time the car is not moving.

What causes white smoke from exhaust when idle?

What Causes White Smoke From Exhaust When Idle? If you have white smoke from exhaust when stopping or idling, your combustion chambers engine might get oil inside, which cause them to burn off the exhaust. This will cause white smoke, along with the idle issue.

Why does my car have a white smoke smell?

If the white smoke is coolant, your car is definitely having a crack in the cylinder head or a leaky head gasket, along with a sweet smell. In this situation, you can pressure test the cooling system if the coolant is low or the engine has been overheating. If it does not, your vehicle is mostly having a leaking gasket.

How to diagnose an air leak in a Mazda?

To diagnose it is simple too, spray where the intake manifold joins the engine with a can of “jump start” or similar and if the idle picks up you have an air leak. Mazda’s are prone to fault here.

Why does my Mazda 626 idle so rough?

The problem began about a month and a half ago when it started getting colder, I live in the East coast. In the mornings, when I initially turn on the car to warm it up, it doesn’t feel as bad. Once the car is warmed up though it begins to idle and feel very rough.

What to do if your Mazda 626 has a leak?

Check all the vacuum lines, and make sure they are in good shape and connected properly. Check the PCV hose and lines also. In addition, check the large air intake hose from the Air Flow Meter to the intake manifold for cracks and leaks. They often crack in the valleys and are hard to spot.

What was the year of the Mazda 626?

The Mazda Capella was commonly known in markets outside Japan as the Mazda 626. The Mazda 626’s sixth-generation was built on the GF platform and released in 1997 for the 1998 model year. My 2002 Mazda 626 car shakes alot.

Why is my idle air control valve stuck?

The AFM may have a stuck measuring core. There is a spring-loaded measuring core, connected to a potentiometer, that moves in relation to incoming air volume. The Idle Air Control Valve/Bypass Air Control (IACV/BAC) may be stuck or bad. You can try cleaning the IACV/BAC. That will often fix a bad idle problem.

Why does my car shake when stopping at a stop light?

It started out being a mild shake when stopping at a stop light, but in the past 6 months or so it’s any time the car is not moving. The car hasn’t needed much maintenance recently, but in the last year I’ve done:

I’ve got a 1999 Mazda 626 that shakes really badly when idling. It gets a little better when put into neutral, but not much. I’ve had two people suggest possibilities: This started happening in the last year or so. It started out being a mild shake when stopping at a stop light, but in the past 6 months or so it’s any time the car is not moving.

It started out being a mild shake when stopping at a stop light, but in the past 6 months or so it’s any time the car is not moving. The car hasn’t needed much maintenance recently, but in the last year I’ve done:

To diagnose it is simple too, spray where the intake manifold joins the engine with a can of “jump start” or similar and if the idle picks up you have an air leak. Mazda’s are prone to fault here.

Why is my Mazda not starting in my garage?

Sitting in my garage because Mazda refuses to repair. Problem started when it would not start sometimes. Turned over, wouldn’t catch. Then power locks make horrible grinding noise and I cannot use the remote clicker to open the doors or trunk anymore. Shortly after that, I put it in gear and all it does is rev up the engine but no go, in any gears.

Why does my car keep losing power while driving?

If the weather is cool and the engine is overheating, this points to a more serious problem. Always keep an eye on the engine temperature, as running with a hot engine is likely to cause serious permanent damage to a car.

How many times does a Mazda 626 pulse?

For example, on a 2.0L Mazda 626 it will pulse two times, on a 2.5L V6 it will pulse three times. (Equus 3145 code reader correctly deciphers it for you and displays 4 for a 2.0L and 6 for a 2.5L). 5. Make sure your steering wheel is straight prior to beginning step 5.

Can a Mazda 626 request a WoT response?

In my experience so far, the Mazda 626 with EEC-IV does not request the WOT response prior to KOER codes. So for Mazda 626 owners you can completely skip Step 6, for other vehicles owners (not Mazda 626, MX6, Probe, or Telstar) with EEC-IV that stumble upon this article in the future, step 6 might apply to you.

How can I tell if my Mazda has an error code?

Mazda used MECS-II and Ford’s EEC-IV system. Error codes are deciphered through a series of blinking check engine light (CEL) also known as a malfunction indicator lamp (MIL). It is comparable to morse code coming from the check engine light while the car is in diagnostic mode.

How to fix a Mazda that stalls at stop?

Remove the air hose from the throttle body. Disconnect the throttle body connector. Remove the throttle body from the intake manifold, with the water hose connected. Clean the throttle body on the air hose side using a soft, clean shop cloth, sprayed with engine cleaner (Mazda recommends their P/N 000-77-A86).

What makes a car sputter at a red light?

It sounds like you may have a damaged AC compressor clutch. As you may know the AC Clutch is the pulley that spins with the Belt. There are two ports on the rear of the Compressor. One is a Suction… Vehicle was sputtering and lost power.

What causes idle surges on a car ECM?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges.

Can a bad throttle position sensor cause idle surging?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light

What causes a car to stutter at 500 rpm?

2. Upon warm restart, engine idle would drop below 500 rpm and almost stall, 3. When cold, at light throttle input, a stumble/stutter around 1,700 rpm that almost felt like a transmission slip. 4. When cold and in 5th gear but low speed of around 40 mph, the car actually bucked.

What causes rough idle after replacing mass air flow sensor?

Replaced air filter and maf sensor. Problems with vehicle turning off seemed to go away but now I have a rough Idle. Car will drop below 1000 rpms and then rev back up to over 1500 like it wants to shut off. Idle problems seem to go away when maf sensor is disconnected. Car throwing codes p0171 and p0102.

What does low idle mean on a Nissan?

1. Stuttering/low idle/near stall/stall when stopped in gear 2. Upon warm restart, engine idle would drop below 500 rpm and almost stall, 3. When cold, at light throttle input, a stumble/stutter around 1,700 rpm that almost felt like a transmission slip. 4. When cold and in 5th gear but low speed of around 40 mph, the car actually bucked.

What are the causes of overheating in a Mazda 626?

What Are the Causes of Overheating in a Mazda 626? Mazda is a Japanese car company that has traditionally struggled in US markets. The 626 was first released in 1979 with the goal of capitalizing on Honda and Toyota’s market share with the Accord and the Celica, respectively.

What causes the head gasket on a Mazda 626 to go bad?

It not only maintains the pressure of each cylinder’s combustion, it also maintains pressure for the engine’s oil and coolant systems as they circulate through the head. If the gasket is bad, the 626 can easily overheat. Conversely, an overheating engine can also cause the head gasket to go bad.

When did the Mazda 626 come out in the US?

Mazda is a Japanese car company that has traditionally struggled in US markets. The 626 was first released in 1979 with the goal of capitalizing on Honda and Toyota’s market share with the Accord and the Celica, respectively. The 626 never achieved the reputation for reliability that its two main competitors did, and sales suffered as a result.

Posted In Q&A