1
vote
1answer
146 views

Engine torque throughput curve is flat or wavy in low gears between 2000 and 4000 rpm

As the title says BMW's (93 E34 525i M50B25TU) engine misbehaves in low gears, namely in 1st and 2nd, most of the time when the engine is cold but sometimes even when it is properly warmed up. The ...
1
vote
1answer
2k views

Sea Foam vs Sta-bil

Is it unnecessary to use both Sea Foam and sta-bil at the same time in two stroke and four stroke engines, or is it advantageous to take advantage of the properties of both? Both products claim to ...
0
votes
2answers
621 views

In an automatic transmission, what decides to change gears? [duplicate]

So say there is an automatic transmission in a car. Is there a computer inside the transmission that decides to change gears, or is there a computer in the car that tells the transmission to change ...
1
vote
3answers
113 views

Cylinder Misfire

I have a 2004 Grand Prix v6. I got my coils checked and number 2 fire was real weak while the others are strong. Could that be why it's showing a misfire on cylinder one? I took it to AutoZone and ...
3
votes
7answers
1k views

Good resources for BMW repair, diagrams? Besides Mechanics.stackexchange.com

I have a 2003 BMW 325i and I wanted to know where I could find good technical documentation on it. I presume there is a maintenance manual or a Climber guide. Being that this is the age of the ...
4
votes
3answers
3k views

Engine idles badly and loudly when I switch on the A/C

The engine of my 1984 Toyota Carina AA60 works great when idling without the air conditioner running, but immediately after switching it on, it idles very badly, and a big noise starts up. If I move ...
3
votes
1answer
118 views

Loss of power to the sound system. Can it be the ground?

I have a 2008 volkswagon rabbit. The sound system has stopped working completely. I've checked the fuses and none of them are blown. It is a stock 2008 vw rabbit 4 door which came with the ...
2
votes
0answers
2k views

Fuel Consumption and other Fuel related data from basic OBD-II parameters [duplicate]

I want to know how can i obtain the values of Fuel Consumption, Fuel Economy and other fuel related information from basic OBD-II parameters like Vehicle Speed, RPM, TPS etc. I have noticed that not ...
2
votes
1answer
982 views

CAN-BUS signals of Ford Transit needed

I'm looking for the specification of the CAN-BUS signals for the Ford Transit connect 2013. Does anyone know who might have done this reverse engineering already? Specifically, I'm looking for ...
3
votes
1answer
341 views

Chevy Cavalier Brakes (Drums + Disc)

I know that the 2002 Chevy Cavalier has disc brakes in the front and drum brakes in the back. What I don't know is whether the drum brakes are used at all during normal braking, or if they exist only ...
2
votes
2answers
5k views

Newly self-installed stereo system quiet with poor, tinny sound quality

I recently bought a Pioneer stereo system (FH-X700BT) for my 2008 Hyundai Sonata. The Sonata still has its factory speakers. The factory stereo was working fine, I just wanted something other than a ...
1
vote
4answers
23k views

What is causing air in my fuel line?

I have a 2003 Jetta TDI. I drove it last night with no problem. This morning I cannot start the car. I popped the hood, and discovered air in the fuel line between the fuel filter and injection ...
1
vote
0answers
65 views

86 Trans Am stalls after hard driving when coming to a stop [closed]

My 86 Trans Am fuel injected 305 is a beast but after hard driving I come to a slow stop and it will stall either while stopped or stopping. It starts right back up tho and never occurs any other ...
2
votes
1answer
290 views

Factors affecting car tires life time: milage or aging?

I have this question about the tires especially I'm planning a road trip this summer. So this is the situation of my car that raised this question. I bought this car brand new in 2011. I am a light ...
2
votes
2answers
413 views

Honda Loses All Power, but Starts Back Up

1998 Honda Accord EX (Automatic) - Loses all electrical power while traveling (speed doesn't seem to be an issue; loses power at slow (turning corner) or fast (highway) speeds. Flashers come on when ...
3
votes
2answers
138 views

2002 Saab 93 SE Ignition Coil - Fluid found inside, engine rumbling

I had a new coil installed 6 months ago in my 2002 Saab 93 SE and it has been running fine until the other day when the engine started rumbling quite violently. Took it to a garage and after they ...
1
vote
1answer
81 views

What is the difference between Brisk LR14ZC and LR14ZC-1 spark plugs?

What is the difference (besides price) between Brisk LR14ZC and Brisk LR14ZC-1 spark plugs?
3
votes
1answer
631 views

Squeaky front wheel on 2007 Honda Fit

My 2007 Honda Fit's front driver's side wheel has started squeaking as it rotates. I've grabbed a video of the sound: http://youtu.be/E8HnarRSwRg I hear it squeaking up to about 60 km/h / ~35 mph ...
5
votes
2answers
2k views

Do fast cars need to occasionally be driven fast?

In the broad spectrum of cars, there's higher end models with sport-focused engines. Examples would be an BMW M3, and even more so Ferraris and Koenigseggs etc. Apparently they're more fussy, in that ...
5
votes
2answers
4k views

Honda S2000 with cold air intake; rain driving

I recently purchased a cold air intake kit from Injen (SP1305P, seen below) at the recommendation of my mechanic and am planning on installing it in my 2001 Honda S2000. However, it is my daily ...
3
votes
3answers
776 views

2003 Nissan 350 Z won't accelerate

We own a Nissan 350 Z and this morning it would not start. It would turn over but it wouldn't fire. After pulsing the gas a little bit it would start but then letting off the gas would cause it to ...
2
votes
4answers
722 views

New batteries with acid at 80% charge— if I run then tend, will it bring it up to 100%?

I have read that, when you add electrolyte and acid to a new battery, it will then be at 80% of max charge. You can put the battery in your bike and it will turn. However, it's highly recommend to ...
4
votes
1answer
636 views

how to charge a dead motorcycle battery?

I have a 1983 Honda Nighthawk but the battery has died. I also have a trickle charger that you see in this photo but I'm not quite sure what amp and voltage settings I need to use for a motorcycle ...
4
votes
1answer
2k views

A/C Does Not Continuously Blow Cold

I have an '06 Chevrolet Silverado with a 5.3L L33 engine and 146k miles. I have been having issues with the A/C not continuously blowing cold air. It seems to cycle between cold and luke-warm. I have ...
0
votes
1answer
47 views

Do Pre-2000 Ford trucks have a less mechanically crowded workspace than a Post-2000 Ford truck?

Is a pre-2000 year Ford truck, less crowded workspace-wise? Were engine and transimission "spaces" larger? I want to buy an older truck, maybe a Ford Ranger, and rebuild the engine and/or ...
4
votes
2answers
2k views

MacPherson strut lower control arm ball joint play and suspension geometry

So I've replaced this ball joint and still get play going over bumps and with the steering wheel turned all the way to one side or another-- you can rock the wheel and get about 15 degrees of play ...
2
votes
1answer
546 views

Volume of fuel reserve in MB E200 W211 2004

I wonder how much fuel is still left in the reserve tank when the yellow fuel reserve indicator lights up in Mercedes-Benz W211 E200 Kompressor (2004).
4
votes
2answers
85 views

How do I responsibly dispose of empty aerosol cans?

I've gone through several cans of brake cleaner lately and need to get rid of the used cans. The cans don't seem to indicate any special instructions for disposal. Aside from depressurizing the cans ...
4
votes
6answers
11k views

Keeping floor mats from moving - no hook on car floor

Looking for some ideas to keep floor mats from moving. In particular, my 91 MR2 has no plastic hook on the car floor to hook into the floor mats and hold them in place. The floor mats I have only ...
2
votes
3answers
784 views

gentle vs Forced push of motorcycle gear - wear and tear [closed]

I am new to riding motorcycle. And I tend to use my legs a little forcibly while changing gears. A friend told me that this would cause the gearbox to wear out soon. He suggested me to do it gently ...
3
votes
2answers
5k views

My car wasn not accelerating and finally come to stop

I have chevy lumina 1991. The motor is very clean and looks like and used to work like a brand new car. However, these days since I was getting broke , I had to wait till my gas meter is very low and ...
3
votes
2answers
75 views

Keyless control system does not respond

I have a 2000 Ford Excursion. Suddenly the remote system does not respond. I checked the battery of the keyless and replaced it, but it didn’t make any difference. Are there any thoughts, or steps ...
3
votes
1answer
2k views

2001 F150 4.6L 2WD front wheel bearing replacement

My front right wheel was roaring over 55 mph. When spinning the wheel by hand it made a purring sound. I pulled it apart. The inner bearing looked normal. The outer bearing was rusty (grease had ...
0
votes
1answer
352 views

Fuel injection mechanism

It is hard to imagine injecting spray of fuels at several thousands rpm. How is it possible to pump liquid fuel at such high frequency?
2
votes
0answers
76 views

Buying a used car in Ontario - safety certificate [closed]

I am planning on buying a used vehicle privately. But it needs a bit of work before it will pass a safety check. Nothing major, but cash is tight and I may have to wait a few weeks before I can do ...
2
votes
1answer
299 views

Power steering pulley wheel

The diameter of the original power steering pump pulley wheel on my 2004 Mercedes ML 350 is approximately 110 mm. The diameter of many replacements is 130 mm. Will the original serpentine belt still ...
2
votes
1answer
900 views

2002 Hyundai Accent not charging battery

Hyundai Accent battery will not charge. Had battery tested, bad, replaced. Had alternator tested, bad, replaced. I installed the alternator myself, from what I remember it was connected by two plugs, ...
3
votes
1answer
195 views

Will a 12 V cooler box significantly affect the performance/gas mileage of my car?

I have an Apollo brand 12 Volt Cooler/Warmer, designed to plug in to my car's 12 V cigarette lighter. I am wondering if the power this device uses will significantly affect my car's performance or ...
10
votes
2answers
1k views

Why do we need make-specific cables to read car ECUs?

I find it bizarre that the automotive industry has standardized the use of the OBDII protocol, yet most cars require make-specific cables in order to access the complete set of diagnostics and ...
3
votes
1answer
542 views

Stuck Lug Nuts on Trailer

I have a light-duty trailer that has sat in my driveway for too long. Both tires have rotted and I need to replace them. Unfortunately the lug nuts are rusted and don't want to come off for love or ...
4
votes
1answer
950 views

2012 Toyota Tacoma won't shift into Reverse

I've just had my 2012 Tacoma towed to the dealership due to the truck not shifting into reverse correctly. I first noticed a problem when I was driving home and the RPMs would get up to between 3 and ...
1
vote
1answer
70 views

BMW 330Xi tire rim broken

New tire started leaking air just to find out that the tire is alright and the air taking pin is also fine. the rim is cracked from inside. I've no clue how that can happen. Also, my mechanic is ...
3
votes
2answers
937 views

Intermittent TPMS Light

My TPMS light (not the tire icon, the textual light) has come on as of late, then turned off for a couple of days, then on, and now off again. The tire pressure in all four tires is OK. As I ...
1
vote
1answer
4k views

lowest tire pressure for a 44psi tire

I want to know what it the lowest tire pressure you could put on a maximum rate 44psi tire? I have been placing 33- 34 psi on these tires for about half a year now, will it damage my tires? I'm ...
1
vote
1answer
102 views

check vehicular damage on tire bursts

I just experienced having a tire explosion yesterday. I was running at around 60mph and suddenly my rear right tire blew. I was go up a bridge and as it blew, there was brown smoke and I might have ...
4
votes
2answers
1k views

Why do tap wrenches have a four cornered shaft and get fastened by a bolt?

Tap wrenches are designed like this one: But with this design the bolt always untightens wile using the tool. Why isn't it designed like this:
5
votes
0answers
110 views

Car Audio wiring

BMW E46 Android head unit A little context: I have a head unit, that I want to have constant power through ACC. Basically, it's an android tablet customized for my car, but the manufacturer ...
3
votes
1answer
1k views

Should I get the oil changed before or after a road trip?

I have a 1999 Honda Oyssey minivan w/ 168,000 miles on it. I get the oil changed twice a year and my next oil change is scheduled for right after an up-coming road trip. Is there any reason to do the ...
3
votes
3answers
1k views

Burning smell when driving

Firstly, this question is written by someone with very little knowledge of cars. So, please bear with me. Some weeks ago, I was driving to work and smelled this horrible, thick, burning odour. Given ...
1
vote
2answers
31 views

Sealing two stainless steel cylinders

I have 2 stainless steel cylinders (very thin) that I want to fit together. One has a diameter of 10cm and the other a bit more (around 11cm). I was thinking of sealing them together with an O-ring, ...

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