1
vote
2answers
288 views

HVAC blowing out of defroster and floor

1995 Chevy S-10 Blazer - 4.3 L Vortec V6 (vin W with PCM) - 230,000 miles original owner. I changed my IAC Valve today, and coincidentally, my HVAC started blowing out of the defroster and floor no ...
3
votes
0answers
93 views

2004 ford taurus - screeching sound when attempting to start the car

To start, I know nothing about cars aside from how to drive them. I have a pre owned 2004 ford taurus with 60000 miles. Recently, it has been making a screeching noise when I turn the key to start the ...
2
votes
1answer
197 views

Car shaking when braking

I got a used car. I notice that on speeds higher than 80Km and when I brake, the car shakes. The shaking is very soft, it is not tough and it is not every time. I noticed it twice on a 2 hours journey ...
4
votes
2answers
117 views

Toyota Sienna 2005 ignition switch issue?

Takes some time to start up Sienna. Have to take out the key, put it back, wiggle it around, eventually it starts. When it just started happening, we took it the Toyota Dealer and they replaced the ...
5
votes
8answers
7k views

Best way to remove broken bolt from intake manifold (broke nearly flush)?

While trying to remove the intake manifold from an old Ford 302 one of the bolt snapped off. As you can see below it is just about flush with the manifold (just below. What's the best way to get ...
5
votes
1answer
456 views

Paint is cracking and showing lines, like dried mud

4 years ago, after repainting my 1980 Chrysler LeBaron, I'm seeing many lines appear in the paint. These lines appear all over, but especially around corners, and much more on flat, upright facing ...
10
votes
1answer
366 views

2001 Infiniti QX4 rough idle - leaking fuel damper vacuum port

I have a bit of an involved problem, so I’ll break it down a bit and try to provide as much detail as possible. My main problem: I have a rough idle on my 2001 Infiniti QX4. It’s not extremely rough,...
3
votes
3answers
596 views

Pontiac Sunfire mysteriously won't start

So, here's the deal: -No lights, no noise, no clicking. -Battery voltage reads fine on multimeter. Terminals are very clean and not corroded. -But it won't jump start. -Headlights turn on. -Fuses are ...
0
votes
1answer
57 views

How to get in fourth gear

I have 2007 automatic Scion tC that I just bought and I was wondering how do I put it in 4th gear or (sport)?
2
votes
1answer
87 views

Wiring both reverse sensors & camera on reverse light - Short circuit threat?

I want to install both reverse sensors & screen+camera. My challenge is with the power wiring. Both the screen and the sensors controllers need these wiring: Power from the accumulator Control ...
7
votes
1answer
800 views

Why is there a hissing noise when I open my petrol cap?

When I fill up with fuel, there is often a loud hissing noise, as if you are opening a bottle of fizzy drink or something whenever I unscrew the petrol cap. It also seems like there are vapours ...
4
votes
1answer
895 views

How hot does an exhaust manifold get?

If I want to use a non-contact infrared thermometer to read the temperature of each cylinder at the exhaust port during idle, how high of a reading should the thermometer be able to handle?
3
votes
0answers
137 views

Replace 2009 Cobalt LNF Fuel Tank Pressure Sensor and Shroud

How difficult is it to replace the fuel tank pressure sensor and shroud on a 2009 Chevrolet Cobalt (LNF/SS)? The shop just quoted me over $200 for this. From what I can tell, the parts should be ...
3
votes
1answer
736 views

Cleaning the gas cap to rule out that tightness is the cause of the “check engine” light

The gas cap on my 2003 Pontiac Vibe used to make a slight sound of "pssstt..", the sound of some air either entering or exiting from the tank as I was opening the cap. Two months ago, the gas cap ...
2
votes
2answers
106 views

Fuel gauge not accurate

This does not always happen but it has happened twice in last 6 months. My fuel gage is accurate most of the times but these two times it was showing that there is 10-15% gas in my tank but my car ...
2
votes
2answers
58 views

2006 Pontiac Montana

I recently purchased a 2006 Pontiac Montana and the dealership seems to have a done a pretty good job with pre-lot reconditioning. The filters were changed, oil, and a new battery and tires were put ...
5
votes
2answers
2k views

Why is cold-start fuel mixture enrichment necessary?

I know a rich mixture is more fuel added than air in the ratio required (14.7:1), but how can it affect anything? I mean, if fuel is added but with no air it can't combust, so how can that affect the ...
2
votes
4answers
248 views

High speed steering & wheel vibration

First post and I'm flummoxed. I have an 2009 Lexus RX350 AWD. At speeds of 70-75 one can feel the steering wheel vibrate fast. At 80mph(for testing purposes) it largely disappears. Back down to 65 the ...
6
votes
3answers
769 views

What is the effect of adding more cylinders to an engine design?

I was trying to understand more about torque when I was comparing two engines, totally different engines. one engine ( Straigh 4 ) that produces 149 ft-lb at the maximum HP given (237HP@8300) the ...
3
votes
1answer
157 views

Wiring Harness / Fuse Panel Repair

I have a 2006 Dodge Magnum and a friend of mine was changing the starter. Forgot to unhook the battery. And when the hot wire on starter grounded out it Melted the Negative battery cable until it ...
3
votes
1answer
2k views

Car won't start - replaced alternator - didn't help

I have a 5-6 years old Mazda 6 2010, 2.5L engine. My car simply won't start. I had this issue yesterday, so I called roadside assistance and they were able to jump start my car. I drove straight to ...
1
vote
3answers
377 views

How to calculate fuel consumption?

If i know the rpm at which the (tachometer indicated) engine is running and the current speed and the engine capacity is there a where to calculate the fuel consumption of the engine? Need not be a ...
1
vote
2answers
97 views

2003 Jeep Liberty 3.7 v6 misfire

I have a misfire on all 3 cylinders 1, 3 & 5, all on the same side of motor. It seems more likely to be an electrical problem than coil packs since all are on same side. Is this a problem anyone ...
0
votes
1answer
42 views

How many liters of oil do you use for servicing?

Honda Accord 2003 V6 service maintenance?
2
votes
1answer
44 views

Whistling noise from rear door

I've recently bought a 2005 Skoda Octavia (in Europe, if that matters) and I could use some help with pinpointing a source of a windlike whistling noise comming from the rear left door. The door has ...
1
vote
1answer
253 views

Why do engines get louder with age?

My engine (Ford Escape Hybrid 2006) has gotten noticeably louder over the years. Not to the point that I'm concerned, but it has gotten me wondering why exactly engine noise gets worse with time. I've ...
1
vote
1answer
30 views

Help finding diagnostic software? [closed]

Do you guys know if diagnostic software is capable of telling me everything going on in each cylinder?
2
votes
1answer
521 views

How does the coolant disappear?

If there is no leak? So how does the coolant level decreases as time passes? Does it get pressurized so it's level decreases? Or what happens? Since it keeps circulating to the engine and coming back ...
3
votes
1answer
38 views

How to repair assist handle on 2015 Toyota Avalon

Not a huge problem obviously, which is why I'm alright with doing it myself. It seems like the spring has just come out of its socket. Album here Basically, it doesn't spring back up and if you'll ...
2
votes
2answers
422 views

Can I replace the halogen H1 55w headlight bulbs on Peugeot 307 with decent LEDs?

Can I replace the halogen H1 55w headlight bulbs on Peugeot 307 with decent LEDs? I initially purchased some "xenon" (blue coated!) bulbs rated 100w but out of 4 only one worked, the other seems to ...
0
votes
2answers
178 views

Paying a mechanic to replace a blown engine for a used one - should he be responsible for changing gaskets?

I'm paying US$800 in labor for a mechanic to replace a blown engine with a used one I purchased. Should changing gaskets be his responsibility? I will be paying for the gaskets.
0
votes
1answer
59 views

What is the car's sound?

If you press the gas pedal, the engine makes louder sound, which I am guessing is the sound of fuel explosion, so why if you are in neutral the sound gets louder than you are engaged to the ...
2
votes
1answer
77 views

Tuning an ancient carbureted Honda motorcycle

I was in an accident recently. Tboned by a minivan at an intersection. Totaled my nice bike. My buddy gave me an old rust bucket he had laying around just to get me to work for a few weeks until I ...
2
votes
1answer
158 views

What OBD II protocol does the 2004 Ford Explorer?

Does the 2004 Explorer use J1850 or some other protocol ? Is there a way to extract codes by jumpering pins on the OBD connector ? Thanks
5
votes
2answers
143 views

How is barometric pressure related to emissions testing?

In the VW emissions cheating scandal, news reports say the following: According to the EPA, "the position of the steering wheel, vehicle speed, the duration of the engine's operation, and barometric ...
0
votes
3answers
316 views

99 honda civic motor issues

I have a 99 honda civic. The engine started knocking while my boyfriend was driving it. He said it had just started. It was low on oil so i figured it was just overheating. However that didnt fix the ...
5
votes
1answer
234 views

ECU replacing procedures

In a Renault Laguna 1.6 2003 , the ECU got damaged physically (the connector went off ) so i have to replace it with another one ( used ECU ) , I've read that I will need to disable the Immobilizer ...
12
votes
2answers
1k views

What can we reliably tell from an in-vehicle battery voltage display?

The Red Cross division I am with recently purchased a new ambulance. It comes with a touchscreen display in the cockpit where we can control lights, sirens, check the temperature in the back, control ...
2
votes
1answer
220 views

How long can I keep motor oil for before it needs to get put in the car or thrown out?

To save going to the auto shop each time I need to do an oil change, I'm thinking about buying in bulk. Though I'm unsure if not using the oil for 6 months to a year, and only then putting it in the ...
2
votes
2answers
2k views

What is the simplest way to replace a Subaru front power window motor?

2006 Subaru Impreza It's a recently purchased car. All other windows can be opened from the driver's side 4 switch control, except for the drivers window so it appears the drivers window motor itself ...
2
votes
1answer
252 views

New engine and clutch, have weird vibration @3K RPM

I just replaced (well, had someone else replace) the engine in my 06 Solstice. The engine runs great for the most part (will open a separate question about that), but there is a weird vibration at ...
8
votes
2answers
1k views

Why does a petrol engine need to maintain an air-fuel ratio, while a diesel engine doesn't?

This simple question has been bugging me for a while. The amount of fuel injected into a petrol engine is calculated according to the amount of air entering through the throttle valve (as measured by ...
1
vote
2answers
139 views

What is the howling noise from the roof bars when driving at speed?

I have some square roof bars, but whenever I drive along at 40mph+ there is a loud howling noise coming from them. It isn't just my car, as whenever I remove them the noise disappears. This also ...
5
votes
3answers
276 views

How can I make my metal pedals less slippery when wet?

It's been raining a lot recently, and I have often been getting my pedals wet, they have been quite slippery when I get in the car. Is there anything I can do to them to make them grip better in the ...
1
vote
2answers
194 views

Motorcycle Headlight Dies After Engine Start

I am having a weird problem with my headlamp on my 1983 Honda FT500. When I go out to start it in the morning, insert my key and turn it (engine still not started tho), the headlamp comes on as one ...
3
votes
1answer
552 views

2001 Toyota Sienna LE P0330 Error

I don't know much about cars, so I might get some terms wrong. My girlfriend drives an '01 Sienna LE and for a couple months the check engine light has been on. When I took the van to O'Reilly's and ...
6
votes
1answer
135 views

Volvo S80 II 2.4 D5 DPF (Diesel Particulate Filter) regeneration conditions

What are the conditions required for the DPF (Diesel Particulate Filter) regeneration? Is it only exhaust temperature or speed and RPM also? I'm wondering if DPF can regenerate while car is at ...
0
votes
1answer
64 views

Chiptuning for a car with DPF (Diesel Particulate Filter) is a bad idea?

I know that it is possible to disable DPF (Diesel Particulate Filter). I'm wondering how bad it could be to leave DPF (Diesel Particulate Filter) functioning and add a chip to a car?
2
votes
2answers
170 views

Can trouble codes P2138 & P2279 be related for a 2005 Honda Pilot?

My 2005 Honda Pilot is having an issue where it loses power and the check engine light and several other lights appear at the same time. If I were to stop the car and cut it off and back on it will ...
2
votes
2answers
80 views

Viable replacements for lead-acid batteries?

Given the state of battery technology, is it viable for either motorcycles or cars to replace the original spec 12V lead-acid battery with a different type of battery? My question comes about as I ...

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