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1500 questions
9
votes
1 answer
P0171 and Fuel Trims
I have a 2002 Toyota Corolla (1zz-fe engine) and I am getting a P0171 code - lean condition. I am trying to make sense of my fuel trim values and I was hoping someone could help understand these results:
I am measuring on Neutral, after the engine…
Florent
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9
votes
5 answers
What's the easiest way to remove chewing gum from a medium-pile floor mat?
A circumstance rather sticky
Unfolded and made things icky.
This ungainly sight
Of chewing gum white,
Uprooting it seems quite tricky!
How can I pull it out causing as little damage to the carpet as possible?
Zaid
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9
votes
2 answers
OBDII across the world?
Is OBDII consistent across the world?
Any vehicle sold in North America particularly in the United States must conform exactly to all OBDII rules.
What about vehicles that are sold in the US but also sold abroad? For instance imports such as BMW…
vini_i
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9
votes
4 answers
How to interpret torque spec ranges?
In the work shop manuals I've seen they tend to gives torque spec ranges such as 14 to 18 ft-lbs ( water pump bolts ) or 66 to 86 ft-lbs ( wheel lug nuts ).
In general, is any value in that range acceptable, or should one aim for the middle of the…
Robert S. Barnes
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9
votes
2 answers
Speedometer on Opel Corsa sometimes not reacting
The speedometer needle on my Opel Corsa most of the time lies at the top of the scale (200) and doesn't move during driving. Sometimes, however, the needle rests at a different number, such as 140km/h and shows the speed accurately when driving,…
DK2AX
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9
votes
2 answers
Lapped valves still leak but slowly
Background
I did some work on my engine's head valves and their seats. This is a very old engine with very old/abused/invented/adapted parts, etc.
Both the valves and seats were in pitiful condition. In some cases, they required using a small chisel…
Aram Alvarez
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9
votes
1 answer
Put Stop leak into engine. Can I reverse the process?
I accidently poured Barsleaks stop leak for the radiator into the engine oil compartment. Is there any way I can reverse the process? The stuff is hardening already. This a 2004 Volvo S80.
J. Gibbs
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9
votes
4 answers
Should I change automatic transmission fluid JUST because it's brown?
About a year ago...
I bought a used 2006 Hyundai Elantra with an automatic transmission and about 70k miles on it.
Before buying it, I had it checked out by a mechanic who said it looked good. They mentioned that the transmission fluid was fine…
BrenBarn
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9
votes
3 answers
How to demonstrate that rear shocks are failing?
I replaced the front shocks on a 2011 Toyota, but still getting excessive body roll.
The extended warranty will cover rear shocks, but I have to somehow provide evidence that the rear shocks are failing.
Without removing them, is there any way to…
End Anti-Semitic Hate
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9
votes
3 answers
Are garage outlets for electric cars evolving to 120V/240V/480V or to 30A/90A?
The numbers in this question are for jurisdictions where the voltage delivered by electricity companies (confusingly called "hydro companies" in some places) is at 110V or 120V, and where every power outlet around a home will supply a typical 15A of…
Calaf
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9
votes
2 answers
How do seat belts function?
How do belts function (work)?
A diagram could be useful and a description of how seat belts function.
How do you pull the belt?
How do you buckle the belt properly?
Sohalia Mathur
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9
votes
1 answer
What effect will replacing manifolds with headers have on oil temperature?
I drive a big heavy car (2011 Mercedes E63, somewhere around 4200lbs) that I take to the track. It has the NA 6.3L engine (M156) with no modifications.
I struggle with oil temperature issues on hot days when I'm at the track, but after adding a…
RJStanford
- 191
- 2
9
votes
1 answer
Excessive Coolant Expansion: Part 2
This is a continuation of my excessive coolant expansion question regarding my 98 Mazda 626 2L. When I drained the coolant I noticed this black sediment which settled to the bottom of the container I was draining into:
It seems to be fine grains…
Robert S. Barnes
- 15,708
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9
votes
4 answers
How can I remove perfectly round locking wheel lugs? What tool can I use?
So of course, I seem to have lost the key to my locking lug nuts. I'd like to be proactive about the situation and remedy it before I have a flat on the side of the road. I've read several guides that say "Just jam a socket on it and hit it with a…
Sidney
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9
votes
5 answers
How long will gas stay fresh in a five gallon plastic container
How long will a 5 gallon plastic containers of fuel stay fresh?
robert hodge
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