20
votes
9answers
207k views

When do brake rotors really need to be replaced?

I need to replace my rear brake pads. A mechanic suggested I also replace my rotors because they are rusted around the edges. The rotors are in fact quite rusted, however, there is no rust on the ...
3
votes
1answer
110 views

Necessity of draining gas for a vehicle that has been sitting for 2-3 years

Related: Reviving a vehicle that has been idle for a long time. A car has not been started for over 2 years. No fuel stabilizer was added to the tank. According to some sources it's best to drain ...
3
votes
1answer
122 views

Shortblock vs Longblock

What is the difference between a shortblock and a longblock? Both terms are used to refer to the engine, but what's the difference between them?
3
votes
1answer
176 views

Citroen C4 Grand Picasso 2007 Multi Function Screen C failed

I've just bought a C4 Grand Picasso, love the car, super practical and comfy. The electronic dashboard is working fine, but the multi-function screen portion is completely blank. So I have a speedo,...
1
vote
1answer
78 views

caliper leaking…

I drive a 2008 Ford Taurus X. In June, I had the rear rotors and pads replaced. They also had to replace the right rear caliper. Last week (less than 2,000 miles later) the left rear caliper started ...
0
votes
2answers
68 views

Will an inspection done by a certified mechanic reveal any and all damage done to a car that has been in a previous accident?

So I'm looking to buy my first car. I'm going to buy something used and have come across a dealership that sells previously leased cars. I've looked up reviews for this particular dealership and most ...
2
votes
0answers
27 views

Clunking Sound in 2008 Chevrolet Malibu [duplicate]

I recently made a post about a sound coming from the front end of my 2008 Chevrolet Malibu. The sound occurs when I accelerate fast or break harder. It also makes the noise when I go slowly over bumps....
4
votes
2answers
229 views

Should I lap my valves if I have easy access?

Now that I have my cylinder heads out of my V6 Tacoma, I am considering taking the valves out to inspect them in case they are bent or whatever and grind them. There is no symptoms of valves ...
3
votes
2answers
150 views

Why are intake valves dirtier than exhaust?

I took my engine apart and one of the things I noticed, on both cylinder heads of my Tacoma V6, is that the intake valves (picture right) are significantly darker (or dirtier) than the exhaust ones (...
3
votes
1answer
190 views

Should I care about valve order or are they interchangeable?

So I've just learned how to take valves down and I'm pretty fascinated by the whole mechanism. I got a C-clamp compressor and took two valves out just to try. Went smooth. A question: is it important ...
2
votes
1answer
129 views

What does valve lapping compound actually do?

As I understand, valve lapping is done to ensure a seal between the valve and its seal ring at the end of the shaft. I am just curious how valve lapping compound facilitates that? Does it make a ...
3
votes
1answer
143 views

Valve lapping and lubrication

I have recently taken all my valves out and cleaned them with a wire brush as well as the shafts in the cylinder heads. I am now getting ready to put them back in and have several questions: What ...
2
votes
2answers
1k views

Car still burning oil after replacing head gasket and rings; what's next?

I have a 1991 BMW e34 525i with 374,000 km which burns oil. I don't have any leaks, and I have little smoke when I go uphill and accelerate. I have replaced the cylinder head gasket set and the ...
3
votes
1answer
44 views

What Do I Use for a Thrust Plate After Double Roller Timing Chain Swap

History/Background of This Engine The Magnum 3.9 V6 was introduced in 1992. In 1997, a TSB was issued to fix excessive timing chain noise. The fix was to remove the cam thrust plate and chain oil ...
2
votes
1answer
326 views

When to Use a Sleeve 'N' Seal?

A Sleeve N Seal is a thin-walled metal ring ~1" deep with an accompanying tube of "seal". It comes with some timing cover gasket sets. To install it, you heat the ring up in the oven on 500 degrees ...
3
votes
1answer
169 views

Timing Sprocket Marks Disagree with Distributor for TDC

I am in the middle of replacing my 1998 Dodge Dakota 39. V6's timing set. According to the manual and everywhere online, the camshaft sprocket dot should be at the bottom and the crankshaft ...
5
votes
1answer
216 views

Reliability of water test for valve seal

I took my valves out, cleaned and lapped them and put them back together. I also put new valve stem seals. At least on one side of my V6 Tacoma. I performed several water tests to check the seal of ...
1
vote
1answer
114 views

Are valve guides normally reusable?

A valve assembly diagram from my Tacoma FSM designates valve guides as non-reusable. I was wondering if that is just a CYA or really the case.
3
votes
0answers
116 views

Hyundai Tucson died while driving; will not start

I have a Hyundai Tucson 2011 directed injected diesel which has just broken down. What happened is that while driving the engine suddenly stopped and won't start. There is no check engine light on. ...
6
votes
2answers
1k views

Roof paint peeling badly, with rust — what to do?

I've got a 97 Dodge Grand Caravan that's generally in pretty good shape, but the roof has started peeling badly, and a few spots have accumulated some rust. This is an old car with limited value, so ...
5
votes
1answer
645 views

What is that sound?

I have a 2004 VW Golf Variant. There's no problem, I'm just curious. Just after I have opened the driver's side door, a small motor runs for about one second, then stops. This also happens if I stay ...
2
votes
1answer
164 views

Reprogramming a Magneti Marelli Microplex MED604C

Im interested in reprogramming a Magneti Marelli Microplex MED604C ecu for the ignition of a uno turbo, but I can't seem to find any documentation for this? I'm new to ecu remapping, and my ...
1
vote
2answers
520 views

Dodge Stratus 2000 shaking at idle after timing belt replacement

I have a Dodge Stratus 2000 SE 2.4 L with 150,000 miles on it. I decided to change the timing belt and water pump, since my mechanic told me to do so because of the mileage it had on it. Anyways, I ...
1
vote
1answer
34 views

What is the pin layout / labels of this oil gauge?

I have a veglia oil pressure gauge from a fiat coupe 16v. On the reverse of the clock is 4 pins, the top and left ones are labeled negative and positive respectivly, but can anyone tell me what the ...
0
votes
2answers
608 views

many issues with my 2000 Plymouth Neon

I have a 2000 Plymouth Neon and today it broke down on the highway. The first thing I noticed (its cold out so I had the heat on low) was that my heat gauge was running high. (note that I just had the ...
5
votes
1answer
100 views

How can torque converters fail?

In what ways can a torque converter stop working properly? Are there any symptoms that indicate failure, or simple tests one could do to determine a malfunctioning TC?
1
vote
1answer
72 views

Can the evap canister valve be ordered and replaced separately for a 2001 Toyota Camry

I'm tripping some codes for the check engine light and took my car in to get repaired. They did a smoke test and are fairly certain that I need to replace a valve on the canister (there are others ...
2
votes
1answer
693 views

2002 Mercury Sable with wrong coolant in it

My wife's 2002 Mercury Sable we purchased a year ago has red coolant in it. I found the owner's manual online and it recommends Ford Green or Ford Yellow. Will this coolant damage her vehicle? Can it ...
7
votes
3answers
16k views

How to fix leaking air conditioning schrader valve

I have a 98 jeep cheerokee sport. The air conditioning coolant leaks. After doing some diagnostics, I detected audibly a hissing sound coming from the low input port, leading me to believe the ...
5
votes
2answers
197 views

Water leaking into frame case/engine?

I just had my 2012 Mini Cooper S (66K miles) repaired last week last week for a failed/leaky water pump. My car had an episode where it overheated and shut down and wouldn't start after pulling over ...
0
votes
3answers
178 views

steering does not respond appropriately

I started my car this morning and backed up out of my parking spot. When I left the parking lot I lost steering (the response from the wheel is extremely stiff and behaves as if there is no power ...
2
votes
3answers
276 views

2001 Chevy Astro- oil in the radiator

I have a 2001 Chevy Astro Van. Yesterday the radiator starting spewing a thick, black substance out the side of it. It looks like old oil. I had the oil changed 1 1/2 weeks ago. The oil on the ...
4
votes
0answers
68 views

What would cause the cam carriers to shatter on my BMW 3 Series (2011)

The timing chain has stretched and the cam carriers have shattered after only 72,000 miles. What could cause this? I have found out that the car was mapped/chipped by the previous owner. Have no idea ...
1
vote
1answer
41 views

x3 bmw latest model has a diesel knock, opened the top one piston not reaching tdc

I have an x3 diesel latest model bought it at an auction. Now it had a heavy diesel knock sound. So I decided to open the top. When I did, I saw neither visual damage on my injectors nor the cylinder ...
5
votes
1answer
306 views

How does a torque converter work?

I am still in the learning process and I am okay with torque converter but there is something I can't understand very well: Why does the impeller and turbine have vines in opposite directions? Why ...
1
vote
0answers
53 views

Motorbike Lack of power/speed [closed]

I bought an ajs dd125e-8 it was delivered on Monday and I had no problems until yesterday on my way home from work. I got half way home and the bike just started to slow down and no matter how much ...
1
vote
1answer
100 views

Lights works when car turns on but won't start when I turn the keys. Would it be the starter?

When I turn my keys and all lights are on but when I try to turn the car on nothing happens. Would it be that my starter is bad and need a new replace? Any help?
4
votes
1answer
942 views

Cruise control not working

I have a 1999 Dodge Dakota. Roughly a month ago my cruise control stopped working. When I turn on the cruise control I get the light showing that it is on. However, when I try to engage/set the ...
2
votes
2answers
97 views

Transmission replacement and changing gear ratios

I have 1998 Dodge Durango. It's a 4x4 5.9L v8. I'm looking at replacing the transmission and seeing as I don't really need 4wd in the city, I'd like to get better fuel economy and better acceleration. ...
2
votes
2answers
359 views

Car won't start, dies after jump

I have a 2007 Ford Mustang, 6 cylinder. A few hours after I drove it, the battery was completely dead. It can start with a jump, but if left to idle the engine stops soon after the cables are removed. ...
6
votes
3answers
17k views

How do I find a vacuum leak? I'd highly prefer not to use a carb cleaner spray

The car is a 1998 Oldsmobile Intrigue with 3.8L V6 engine (3800 Series). I've been doing my research and due diligence, but please understand I'm very inexperienced with automobiles. I went to ...
2
votes
1answer
681 views

What is brake imbalance? How can I fix it?

My 2000 Opel Agila 1.2 has an advisory on it's MOT saying: Front Brake imbalance [sic] high at 23% What does this mean? What's wrong with my brakes? What does the 29% mean? How can I fix it? ...
3
votes
1answer
1k views

Using an open vs closed clutch cover on a motorcycle with a dry clutch

A common modification I've seen on motorcycles with a dry clutch is to replace the closed clutch cover with an open one. Besides the visual and auditory differences, will I notice anything else (...
2
votes
3answers
235 views

Ford Focus steering oscillation at low speeds

Yesterday I bumped my left wheel on a pavement, due to an understeering after accelerating (my bad). I smashed it quite good and I was certain the alignment was off, so I did some tests. No tire ...
2
votes
1answer
53 views

2001 Ford F150 howling when braking with trailer

I have a 2001 Ford F150 Lariat with the 4.6L V8 Engine. Sometimes while I have my trailer hooked up I get a tremendous howling while braking. Almost so loud you can't hear anything else in the cab. ...
1
vote
1answer
240 views

Ford Fiesta and Focus Clutch Issues

I am in the UK and I am currently planning to get a Ford Focus/Fiesta depending on the budget and features. I have viewed 2 Fords so far - a Focus (100K miles, 2001 model) and a Fiesta (35k miles, ...
1
vote
2answers
62 views

Crossover amp selection question

I have a 2012 Chevy Silverado C1500 with factory (non-bose) sound. I have upgraded my speakers using Kicker DSC65/DSC654, and now am looking to add a amp for the speakers. I am interested in a unit ...
1
vote
1answer
35 views

Residue lapping compound in valve shafts

I have read that valve lapping compound, as it is abrasive, should by no means get into valve guides as it will impede the reciprocal motion or damage the valve. Should I worry about small amount ...
3
votes
3answers
629 views

Can a tow truck tow you and your trailer?

If your vehicle breaks down while towing a trailer can a tow truck tow both your vehicle and the trailer? The tow vehicle in this case is rear wheel drive.
5
votes
3answers
17k views

Mass Air Flow Expected Values

I have a 2002 Audi A4 Quattro 3.0. I have a Vagcom USB cable and I am trying to diagnose the MAF sensor. I had a friend get some readings from an OBD2 scanner, which indicated that both precat O2 ...

15 30 50 per page