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-2

Like watering plants when the sun is high in the sky, water droplets are mini magnifying glasses, they will burn and kill plants and perhaps discolour paintwork for that same reason, if they don't evaporate immediately.


1

You can try and get the transmission flushed and might get a few more thousand miles out of it, but from the sounds of it, your tranny is toast. It will either need a rebuild or a swapped out for a new/rebuilt one. What is happening is the soft parts of the transmission (bands/clutches) are worn out. They no longer have any grip to give you the momentum. ...


5

The thing about washing it on a hot sunny day is the soapy water dries quickly and the soap spots can be a pain to get off, or at minimum look ugly when you're done (which often defeats the purpose of washing it in the first place). Also water spotting especially if the water in your area is pretty hard. Not permanent, but still a pain. I guess there might ...


6

My understanding just based from experience is it means its easier to clean because water doesn't evaporate in 10 seconds and leave those dirty residue spots on the car. Its easiest to wash just before sunset when the strong suns rays are gone and temperature is cool and then you've plenty of time to chamois the water away for great clean finish. Then its ...


1

Unless your Engine is gunked up, and black sludge is prevalent, do not perform a flush. Just keep a regular maintenance of regular oil changes, and you will be fine. Flushing oil can do more damage to your Engine if your engine does not need it. I had a 150K Diesel VW Golf which I like a twit decided to do flush on, this caused it to smoke profusely. It had ...


1

There are really two related questions here: How is the engine constructed (timing belt vs. timing chain), and What is the service interval on the belt or chain. As has been pointed out there are design tradeoffs. Chains, in general, tend to last longer. Belts, in general, are quieter and might be easier and/or less expensive to change. The service ...


1

The engine in your Primera should be the QR25DE. According to the Wiki page, it should be equipped with a steel timing chain, not a belt. Your mechanic is spot on. Timing chains are usually good for the life of the engine (rare occasions otherwise). A timing belt/chain connects the camshaft and crankshaft together, making them work as one. The camshaft ...


0

I've never really checked but it wouldn't be anything you could do from generic obd2 you would need a scan tool that could talk to either the cluster computer or whatever other computer. Check your service manual booklet it should tell you what needs to be checked/replaced based on mileage.


2

From many years of selling both 'standard' and 'high-performance' HT lead sets, here's my advice: If you're replacing your lead set because it's simply time to do so, buy the cheap ones: they're perfectly ok for most 'normal' applications. If you're replacing them because the last ones gave trouble after less than expected mileage, go for the #2 mid-range ...


3

As @tlhIngan said, the benefit of good wires isn't so much the quality of the spark when they are new, but the longevity of the wires. Spark plug wires don't lead an easy life, they are exposed to high temperatures and high voltages and a lot of strain and bending during plug changes and other work around the wires. As they start to fail they will become ...


5

There isn't any performance to be gained from spark plug wires, just better build quality, which gives you not a better spark, but rather maintains an appropriate spark for more miles/years before their performance degrades to the point of needing replacement. You cannot tell build quality by reading the side of a box, it is a manufacturer reputation more ...


4

Here's an article that explains spark plug cables. It had some interesting information that I hadn't really thought of. That said, I'd say the largest difference in consumer grade spark plug cables will be on durability. It will probably have a bit of better electrical traits (e.g. resistance), but I don't imagine you get a large gap in spark performance ...


3

I used to do this with my Ford Fiesta and Puma - it's all about fuel. When the ignition key is turned on, the fuel pump runs for a few seconds, then shuts off. This ensures there is enough fuel pressure in the rail to start (since a richer mixture is required to start when cold). The Puma did not like me turning the key straight to START without waiting for ...


21

You take 2 nuts and put them on the same set of threads. Then lock them against each other by loosening the lower nut and tightening the upper nut. Then use the upper nut with your torque wrench to install the stud.


1

If you have the 3vze/V6 engine, those are highly prone to headgasket failure to the point there was a factory recall, so that is a possible candidate. The exhaust cross-over tube behind the engine tends to overheat the rear cylinders, so that is typically where the headgasket failure occurs. You may be able to keep it limping along for a while but ...


2

Diesel does damages rubber. Diesel fuel may cause stripping of certain types of rubber hose, gradually perforating the fuel hose. Thus, it is strongly advised to make sure if the fuel hose to be installed is rated for diesel. To clean a diesel spill, you first need to pour lots of warm water on the spill to instantly reduce the risk of rubber damage. Then ...


1

I must agree there are definitely a few faults which you could identify just by installing a specially created app that would use a microphone, maybe camera, and maybe that sensor which indicates the position of your phone (rotation, shaking). Could help with a few faults, but unfortunately it couldn't be your definite verdict for an engine condition. That ...


3

When getting new oil/tires rotated at your dealer make sure you check the lugs on all tires. Mechanics like to use a torque stick to secure lugs. This device fits on the end of an air driver—the loud whoosh noise heard in repair shops—most shops have a stick set that goes from 40lb-100lb and are color coded for different torque strengths. Sometimes a tech ...


3

It's certainly possible, but probably only to the extent you're proposing: a go/no-go indication. Mechanics will use engine stethoscopes to determine exactly where a noise is coming from, which may tell them whether a rattle is a bad bearing or a loose bolt, or whether a knock is from a piston or a lifter. Some engines have "knock detectors" (actually tuned ...


7

It is absolutely possible to tell if an engine is unhealthy by the noise it makes. In many failures, an engine will start to emit unusual noises before any fault codes or warning lights are displayed. Additionally, certain ancillary equipment such as alternators can give out audible indications that it's failing. I suppose it would be possible to use the ...


1

For what it might be worth, we have a pair of Jetta Mk4 TDIs one with the ALH engine, the other with a BEW. Both are well over 200,000 miles (the ALH is pushing 300,000) and for the most part we do our own maintenance, using a local shop for thorny diagnostic issues and when specialized tools or a lift are required. Over about 200,000 miles the ALH has run ...


1

Can polishing compound ruin your car's paint? Yes. Is that a guarantee? Nope. The purpose of compound is to remove just enough paint that surface imperfections (scratches, swirls, holograms, oxidation) go away with the paint that is removed. The compound you linked to is specifically for hand application and as such is likely very aggressive. Thankfully it ...


1

I thought that this would protect my car paint from sun, dust, rain , etc., but it seems I should have applied wax rather than polishing compound. Unfortunately I should have read more before buying the product. Can anyone advice if applying a polishing compound can ruin my car paint? You're right, there's no point in polishing a new car, or a fresh coat ...


5

Yes, you did indeed apply an abrasive "compound". Polish materials come in coarse and finer grits just like sandpaper. To polish scratches left by a polish of a course grit finer grits are used to polish out the deeper scratches. The good news the clearcoat can, very likely, be restored to a normal smooth surface shine. You have two options: You can take ...



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