1
vote
0answers
9 views

bore/stroke question

I'm wondering whats the limit for how over-square a motorcycle engine can be... I know all sport bikes i looked at had just under 25 m/s piston speed regardless of the stroke/rpm... So i'm wondering,...
0
votes
1answer
5 views

2004 mazda 3 4door 2.3liter

My car first ran out of gas at a quarter tank of gas few weeks later it ran out on half tank well then it started dieing while driving down the road and now it won't run it will turn over and ...
1
vote
1answer
7 views

Higher CCA in batteries in warmer climates

If a battery with a higher CCA capacity is used in a warmer climate, would it effect the battery's performance in the longer run?
3
votes
1answer
14 views

My 2004 Audi a4 is making a gurgling noise from my engine

My 2004 Audi a4 is making a gurgling noise from my engine. I am also having to constantly put antifreeze in it. Is this related? I know I'll have to take her to be looked at but can anyone tell me ...
3
votes
0answers
18 views

Discharging alternators

I had to replace the original alternator on my '99 Z28 Camaro in January and have had 3 after market and 1 OE and all continue to discharge with air and radio on. Mechanic says it is fine but I think ...
4
votes
0answers
9 views

04 GMC Savanna G2500 4.8 V8 No Power

First time I looked at this the A/C compressor clutch wasn't engaging. Long story short: the high side pressure switch on the back of the compressor was unplugged. Noted that the engine was shaking (...
3
votes
1answer
19 views

How did luxury cars provide smoother rides without active suspensions?

It seems all luxury cars have active suspensions now, so it's not a fair comparison to "non-active" cars. But I was recently driving a mid-2000 Mercedes E-class over the same roads I normally travel ...
1
vote
0answers
9 views

Coolant loss out of overflow of an 1980 c-10

I have an 1980s Chevy 305 engine. Was out for early morning breakfast and noticed coolant was coming out of overflow tank. The motor had not gotten warm yet. What could be causing it to overflow???
4
votes
0answers
13 views

Intermittant starting problem

1967 Camaro SS 350 with Powerglide trans. sometimes will not start. No click, no dimming of lights when key is turned, nothing happens. It will do this maybe one time out of 15 or 20 starting ...
2
votes
0answers
8 views

After market lights

My aftermarket led lights work at first but if I turn them on after a short period of time they don't? if I plug stock third brake light back in they work fine?
1
vote
0answers
6 views

Acura MDX rear-seat cup holder not opening

I have an Acura MDX 2008, and I recently noticed that the rear seat cup holder was broken. It won't open up. As I don't have a warranty on the vehicle, how can I fix this issue? Thanks!
3
votes
0answers
9 views

Vibration when stopped in gear

1998 Mercedes E320 (57,000 miles), when stopped, in gear, brake pedal down and before car warms up we have a bad vibration. If you put it in neutral, park, or reverse, the vibration goes away. Runs ...
2
votes
1answer
10 views

Strange dull areas on paintwork after trip to bodyshop

After a crash I had some work done to my car at an Audi approved bodyshop. This involved some respraying. Since I've got it back I've noticed dull matte marks on one side of the paintwork. They seem ...
3
votes
1answer
12 views

Does a CEL always result in an OBDII DTC?

Will any error which causes the check engine light to go on show up as a DTC during a regular OBDII scan? This is obviously only in relation to OBDII compliant vehicles.
3
votes
0answers
7 views

New LED 3rd brake light stops working

Swapped out LED taillights and third brake light on my '05 Sierra. Tail lights work fine but the third brake light will work when first plugged in but after a short while the cab lights don't work.
4
votes
0answers
15 views

Accidentally poured gas into antifreeze in tractor

I was gonna fill our tractor with gas and there were to caps, a metal one a d a filter looking one, neither was labeled so I figured the metal cap was the gas cap, I put gas in it for just a few ...
2
votes
4answers
15 views

Overheating in E-46, 3.23i

My BMW E-46, 3.23i temperature is always going to the red zone. My water pump is fine, the thermostat is okies, but the hose on top is hot and swollen. The lower hose, however, is cold and fine. I ...
3
votes
1answer
23 views

What could be causing my front right brakes to get tight and decrease in speed very rapidly on a Ford Focus 2006 zx4?

Well I've been having this problem for a long while now causing me not only frustration but not to be trusted at work for getting there late and other personal problems. I'm trying to sell the car ...
3
votes
2answers
15 views

Fuel Type (octane) for Mazda Axela 2010

I bought an imported (from Japan) Mazda Axela 2010 (i-stop, 1990cc, sedan) and the dealer asked me to use 95 octane petrol. There are a lot of misconceptions about octane and I heard many dealers ...
3
votes
2answers
17 views

Steering control panel upgrade for the 2015 Kia Forte

I purchased a 2015 Kia Forte LX and I'm wanting to replace the stock remote control panel on the steering wheel with that of the panel on the EX. I know it's possible because every time I spoke to ...
2
votes
1answer
15 views

2002 Honda Civic over heating fan does not comes on

I need some help. My girlfriend has a 2002 Honda Civic that keeps overheating. The fan doesn't turn on. We tested both fans and they work properly. We changed the thermostat, the cooling fan switch ...
3
votes
1answer
8 views

Hydraulic pump receiving power but not running

I have a Mk1 Golf Cabriolet with an hydraulic roof. Today I went for a drive and whilst the roof lowered as normal, I could not raise it again. I checked the fluid levels and they're fine. There is ...
5
votes
2answers
29 views

How do you remove a broken oil dipstick tube?

I broke it off by mistake and am trying to replace it. Here's what I'm looking at. and here's what I've tried so far. If I try the green one I can pull very hard but it doesn't come loose. I can ...
3
votes
1answer
15 views

Motorcycle won't start without jumping the solenoid

If my bike wont start but does start when I use the wrench on the solenoid trick; does that mean I need to replace the solenoid? I'm having trouble working this out as I'm new to mechanics and trying ...
9
votes
6answers
547 views

Is this tire puncture able to be plugged?

My wife picked up a rather large screw in her tire. It's a very clean entry, but I'm pretty sure it's too large to plug the hole. One shop even said as much, but I figured I'd get a second opinion ...
3
votes
1answer
11 views

Speaker setup in Subaru Impreza

I recently had an Alpine INE-W960A Navigation head unit and SPR-60C component speakers installed in my 2016 Impreza hatchback. As my budget was limited I did not replace the rear door speakers at the ...
4
votes
2answers
116 views

High beams work, low beams do not. What is wrong with headlight?

I have a 2000 Jeep Wrangler TJ and the high beams work but the low beams don't. I replaced one of the relays under the hood and the high beams started working but the low beams still don't work. What ...
2
votes
1answer
12 views

Retrieving handbrake status light and reverse light from OBD II

I have a project to replace my car's instrument panel with a Android tablet. So I'm developing an application that communicates with an ELM327 device through bluetooth. I have managed to successfully ...
2
votes
1answer
12 views

If I don't change pinion seal right away how much damage can be caused?

I have an '86 Jeep Comanche with a leaking pinion seal, I don't remember how long it has been leaking. I thought it was the rear differential gasket and changed that but it still leaks. Hope I can go ...
3
votes
1answer
22 views

What can cause intermittant stalling when the engine gets hot?

I have a Ford Windstar 1996 3.8L engine with 170k miles on it. Recently, it started stalling with no warning after the car runs for about 45 minutes. There are no OBDII codes showing, nor any ...
4
votes
3answers
301 views

Washing a vehicle in the hot sun?

A quick search online turns up a number of pages that recommend against giving your vehicle a carwash in the hot sun. Will this actually damage the finish on the vehicle? Will it cause any harm to ...
1
vote
1answer
26 views

250 cc scooter CVT belt repair problem

I have a 2008 Qlink Legacy and the CVT belt broke the other day. I was riding when there was a pop and the bike lost power to the rear wheel. I took the CVT cover off and removed the old belt that was ...
2
votes
1answer
17 views

My 2004 Chevy trailblazer won't accelerate or just got maybe 5-10

I'm trying to figure out why my truck driver won't move. If I leave it off and turn it on it goes maybe 5-10 mph and then just completely stops moving and you can just hear it revving. Can someone ...
2
votes
1answer
9 views

Motorcycle front disc brake scraping sound

Had my tyres changed on my CBF 125, last week. Since then, I've had issues with braking. I took the bike back to them and taking the wheel off (to change the tyre as it was already going flat) and ...
3
votes
1answer
14 views

Need to repair connector for the Temp Sending connector on my Buick Nailhead engine

I'm starting to work through the things that need doing on my 1965 Buick Wildcat. At one time in the past, one or more rodents chewed through the wires on my Temperature Sending Unit. I've replaced ...
3
votes
2answers
14 views

Nissan Primera Timing Belt Lifespan

I have a Nissan Primera P12 2500cc sedan (2001) at around 97,500 km on the odometer. I asked my mechanic when do I have to replace the timing belt and he said it lasts the lifetime of the car and ...
3
votes
2answers
22 views

Grind/Crunch Sound Near Alternator (video)

1983 Chevy 305 small block. Hearing a grinding sound near the alternator. Is this a bearing or something grinding near the belt ? Not exactly sure how to diagnose. Video: https://www.youtube.com/...
2
votes
0answers
9 views

Citroen Xsara 2002

I drove my Xsara early this morning, got back in 2-3 hours later and NOTHING!! Dash lights, headlights, etc. are fine – so battery has power. What could be the issue to happen so suddenly and are ...
8
votes
2answers
42 views

Can bolts become fused with an exhaust manifold? If so is it possible to remove them?

I'm starting to think this is a sick joke. It's shaped like a bolt. It has threads like a bolt. But for all intents and purposes it is one with the exhaust manifold. Here's the piece I'm working ...
4
votes
3answers
20 views

Engine Braking Force

I've got a few questions regarding the force of a typical engine brake: 1.Which parts of my car influence its numerical value? 2.Is there a formula, which enables me to predict the numerical value, ...
2
votes
1answer
17 views

AC Compressor running but no cold air?

I have a 2002 Honda Civic. When I bought the car, the AC compressor was unplugged. I plugged it back in and it did not engage. I checked the pressure and it was a little bit low. I jumped the relay ...
10
votes
2answers
715 views

Mysterious “5th” Gear on a 4-Speed Automatic?

My 1998 Honda Civic LX is equipped with the 4-speed automatic transmission. Before I looked this up, I decided to count the number of upshifts from a stop, and I counted four, not three. This mystery "...
6
votes
1answer
29 views

How toxic is brake fluid?

Is brake fluid especially toxic or is it about the same as dirty oil (not very toxic in trace amounts or just occasional human exposure). I'm trying to figure out how much effort I should put in ...
5
votes
2answers
42 views

Car Won't Start After Disconnecting and Reconnecting Ground Cable

I wanted to reset my check engine light to see if a problem I think I fixed resurfaces, so I disconnected my negative lead from the post. When I reconnected the lead the car refused to start. ...
3
votes
1answer
16 views

Gas pump hose design

After you are done putting gas in your car, is there any leftover gas in the hose between the nozzle and up to the level of the tank opening (below the red line in the image below)? To be clearer, ...
2
votes
1answer
11 views

Engine Controller Design

I'm wondering if there are books/articles or perhaps an open source project on the theory and design of engine controllers (ECUs)? It seems like designing an ECU could be a fun project and I'm also ...
6
votes
1answer
11 views

Can Getting Fuel Injectors or Ignition Coils Wet Ruin Them?

I have a 2005 Suzuki Forenza Wagon where I recently cleaned the engine compartment. I was a little careless during the cleaning and water got in under the spark plug wires to sit around the top of the ...
3
votes
2answers
12 views

09 Mazda 6: Metallic rattling sound when accelerating at low speeds

I have a 09 Mazda 6 that I purchased used about 3 years ago. For the past couple of months or so it has been making a soft, metallic rattling whenever I accelerated at low speeds (usually when I ...
4
votes
3answers
23 views

Can I put a coil-on-plug system in any car?

Could I put a coil-on-plug (direct ignition) system in, let's say, a 1968 Ford Mustang GT? How much would I have to change? Could I add this setup to any gasoline engine?
4
votes
2answers
28 views

What could cause the engine temperature gauge and AC to fail simultaneously?

On Wednesday I noticed my car's temp gauge reading at bottom while driving down the highway. The air conditioner was also non-functional. Each of these components were working fine the day before. The ...

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