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Unanswered Questions

6,579 questions with no upvoted or accepted answers
7 votes
2 answers
1k views

Audible clicking at high speeds - what could it be?

I just recently started hearing an audible clicking sound in my 2015 Ford Mustang Ecoboost. I only hear it in 3rd and 4th gear and only when I'm at about 3.5k rpm and higher. (I originally just ...
6 votes
5 answers
1k views

What causes narrowband O2 sensor behaviour?

It's a given that narrowband O2 sensor (Lambda) output swings up and down within the 0-0.9v range, but everywhere (on the 'net including here) I am seeing people say this is due to the ECU in closed ...
6 votes
4 answers
2k views

'07 Escalade - AC issues

2007 Escalade AWD. Yesterday, I noticed that the air conditioning keeps turning on and off. To clarify: the control unit does not indicate that it's turning off. I still have the fancy snowflake ...
6 votes
3 answers
4k views

Knocking valve sound after gasket replacement

I changed the intake gaskets top and bottom along with valve cover gaskets on my Ford F-150. After I finished it was hard getting started but I finally got it started and now it sounds like the valves ...
6 votes
1 answer
2k views

How to test if turbo is properly working in a 2006 Forester XT

I recently had my Forester engine serviced and afterwards it didn't feel like I was getting boost and was getting a whirring/spinning noise while throttling. I brought it back and they realized they ...
6 votes
0 answers
332 views

Judging self adjusting clutch reserve

I was told that the position of the protruding adjustment springs (indicated in red on the picture) can indicate the thickness of the remaining clutch lining. Is that true and can somebody estimate ...
6 votes
1 answer
1k views

Corolla rumbles at 2800 RPMs but not higher

I recently bought a 2013 Corolla LE (automatic transmission). I am noticing that the car starts rumbling at 2700 RPM and stops rumbling at 3000 RPM (maximum rumbling at 2800 RPM) when speeding up and ...
6 votes
3 answers
2k views

Power steering works normally to one side, but hard to the other

My Ford Mondeo was leaking from the steering rack. So it was repaired by a steering specialist. After about 1,000 kms it steers smoothly to right but when turning towards the left it feels like there ...
6 votes
1 answer
1k views

Audi A6 C6 on board computer is off

I'm not sure if it's something wrong with on-board computer or I just don't know how to turn it on. When the car is started the display is completely off. and only turns on sometimes when some kind of ...
6 votes
1 answer
419 views

1993 Merc 300SE always stalling soon after startup, fuel pressure tests > 50psi

From the moment car starts to the moment engine stalls, which is about 40 - 60 seconds, fuel pressure is always above 50 psi. Can I safely conclude stalling is not caused by fuel system problems? I ...
6 votes
3 answers
527 views

What causes an engine idle to increase briefly?

I have an 82 Honda 450 Nighthawk motorcycle that I'm rebuilding and I need to tune/balance the carbs. I have them bench-balanced and reset the idle screw on both. Now it runs a lot better, but every ...
6 votes
1 answer
684 views

Seat Ibiza Electronic power control

I lease a Seat Ibiza 1.4 16V Stella and have an interesting problem. After 6 months the EPS light will show up occasionally. It's been back to the garage a few times for the issue where they reset ...
5 votes
1 answer
12k views

Is Windex safe for the windshield?

I see conflicting information on whether or not Windex (or ammonia-based glass cleaners) is harmful for the windshield. For example, thoughtco claims: In reality, auto shops and auto-glass ...
5 votes
2 answers
491 views

Ford Probe '95, 2.0l, 85kw starting problems

I'm trying to diagnose why my car doesn't start. Hope you guys will share some ideas for what to test. First of all, the car started when towed by another car and holds idle, but as soon I press the ...
5 votes
2 answers
859 views

Clunking noise from dash of 2005 Ford Explorer

All of a sudden there is a loud clunking noise coming from the dash of my 2005 Ford Explorer. Observations It definitely sounds cyclical. Exists only when climate control system is ON. Sound ...

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