General internal combustion engine questions.

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8
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2answers
3k views

Why might I experience a power falloff after starting my car with the AC On?

I have a 2000 Chrysler Neon which generally runs well. I have noticed that if I start the vehicle, turn the AC on and reverse out of the driveway, the engine seems to struggle/sounds like it is going ...
0
votes
2answers
2k views

Engine Code p0104 - EGR issues?

One of my family members owns a Ford Econoline E150 modified with a roof extender and power wheelchair lift, however the engine is a stock V8 which runs on regular gas. Anyway, after a fairly long ...
2
votes
1answer
112 views

How do the cycles of the engine get converted into cycles of the wheels?

Is it the transmission that converts the high rpm of the engine into the lower rpm of the wheels rotation? Let's say that an engine was running at 500 rpm (this refers to the rpm of the crankshaft, ...
3
votes
2answers
504 views

97 GMC k1500 missing badly. Ignition system problems?

I have a 97 GMC Sierra k1500 with a 305 (5.0L) engine. It seems like every year for a few years now it will suddenly start missing very badly. There will be random misfires on all cylinders almost ...
3
votes
1answer
101 views

Which engine part is this?

I own a speedboat that is powered by a 5 liter V8 Mercruiser with 200bhp. Yesterday when trying it out for the 1st time this season, 2 things happened: 1 - the boat was always trying to turn left ...
1
vote
1answer
50 views

Strokes during compression test?

Just wondering what the general consensus out there for the amount of times the vehicle turns over during a compression test? I have heard anywhere from 5-8, and personally crank 7. What is the ...
1
vote
1answer
380 views

Crate motor for 2004 Dodge Neon

I'm looking for a good source to get a crate motor. I've tried some google searches but only found motors with high milage on them. I'm trying to decide on getting a crate or just rebuilidng existing ...
1
vote
1answer
3k views

How to fix Accord 1998 EX V6 OBD-II trouble code “P0108” — MAP (Manifold Absolute Pressure) Pressure Circuit High Input?

A few days ago, my Honda Accord 1998 V6 EX's "check engine" light came on. Since then, the engine experiences instability during idle. At stop lights, I can hear the engine having trouble stay running ...
1
vote
1answer
1k views

Does a warped engine block affect compression test?

Check other questions, and did not see an answer. Backstory: Driving around, discovered pin hole in radiator. Chose to drive home, since I was at my exit, and I lived right there. Blew head gasket. ...
1
vote
4answers
8k views

Uneven idle when my '93 Honda Accord's engine is cold

When I start the engine cold in my '93 Honda Accord, it will rev up to 2000rpm and slowly go down to 800 rpm as the engine warms up (normal behavior), unless I do one of the following during this ...
7
votes
1answer
788 views

Car Suddenly Decides To Not Crank

Today I turned the key to start up my car and all the lights (headlights and instrument panel) came on bright and normal, but the engine made absolutely no sound. It wouldn't start, it didn't even try ...
2
votes
1answer
402 views

Removing Mitsubishi Galant 2000 V6 Engine

How do I remove a Mitsubishi Galant 2000 V6 engine? I have the wires and everything disconnected, but I am not sure if I am supposed to take the transmission off, or just pull it out transmission and ...
2
votes
1answer
502 views

Comparing v-twin with straight-four engines

This isn't really on-topic for "motor vehicle repair", but I figure it's kinda close. A few months ago, I bought a 1983 Honda Nighthawk 550, which has a straight-four engine. A friend of mine was ...
1
vote
3answers
8k views

Best Ways to Pass Emissions?

I recently bought a 1989 Mercedes 300E that didn't run. Has a straight-six gas engine. Thanks to the miracle of Seafoam and a lot of luck, I was able to get fuel delivery happening again. I then ...
2
votes
3answers
121 views

What is this tank for ?

I just bough an old (1980s) Nissan Pathfinder. In the engine I have managed to identify the engine-oil hole, the radiator-water hole and the windshield-washer hole (you can tell I'm a car expert!) ...
3
votes
2answers
1k views

What is the potential damage of a temporarily partially submerged front end?

I have a 2005 Nissan Sentra (base model, FWD, 1.8L 4-cyl engine) and I took some bad advice from the Maps app on my iPhone and I ended up driving on a very, very bad road. At one point, I drove into a ...
4
votes
2answers
492 views

engine underpowered in idle - what can be done to improve a diesel engine power at low RPM just a bit?

There is an engine which is a bit underpowered when idling, it can not even keep the car moving on a flat road when in gear and idling at 700..800 RPM - see link. What can be done to improve its ...
5
votes
3answers
1k views

What kind of engine oil to run a Diesel?

I got an 1987 Toyota Land Cruiser with a 2H diesel engine. I never changed oil on a diesel engine prior to this truck, so I'm a little confused. Toyota Factory Shop Manual recommend API CC oil type, ...
6
votes
1answer
1k views

Heater smells like sulfur

I drive a 2006 Toyota Sienna. When driving with the heater on I often smell sulfur. This is more common when I am driving up a hill, but if I turn the heater off, the smell goes away. What causes this ...
4
votes
2answers
2k views

does a car normally continue moving at a constant speed when in gear and the foot is taken off the accelerator pedal?

I remember when driving a passenger car, when I took my foot off the accelerator pedal completely, but remained in gear, the car would normally continue to move at some low speed, different for each ...
2
votes
1answer
522 views

Passat - Oil warning light on engine rev. Expensive fix?

looking to buy my first car, which is a daunting task for someone with little money and even less knowledge of motors. Seen this one on ebay, which ticks all my boxes but is cheap because: When ...
3
votes
1answer
152 views

What is a gasket head kit?

I am looking at buying a used car, many listed have had "gasket head kit" installed? What is a gasket head kit? Should i be wary about buying a car with one installed? Will the "gasket head kit" ...
3
votes
1answer
1k views

Spark Plugs 1998 Buick Lesabre

Where are the spark plugs in a 1998 Buick Lesabre? Pictures would be helpful as I'm a novice at this type of thing. I'm assuming I need all six because I'm getting a check engine light saying number 6 ...
3
votes
1answer
400 views

97 altima 5spd sputters, has loss of power under 3500rpm, dies when clutch is disengaged

My 97 altima has been to the same shop four times for the same problem. It will sputter and smoke( black smoke) and has large loss of power under 3500rpms and dies just about every time you depress ...
3
votes
2answers
2k views

2000 Nissan Maxima Service engine light

The dealer diagnosed it and says it got tripped by catalytic converter and rear oxygen sensor. The total estimate was around $2000. The blue book value on his car is around that amount. Is there a way ...
1
vote
1answer
749 views

Coil Pack Location

Where are the coilpacks located in a 1998 Buick LeSabre? Images would be most appreciated. Robert
3
votes
1answer
2k views

How to attach PCV breather hose on MkIII Golf?

The old "breather hose" on my Mk3 VW Golf became cracked and fell off. I bought a replacement tube, which connects to part of the PCV apparatus on top of the engine via a hose clamp, but it is not ...
2
votes
2answers
4k views

What could cause an engine to make a chirping sound when it's first started up?

I've owned a Diesel Peugeot 307 for a year now but during the recent winter months I have noticed a strange sound in the engine when I started it up. As sounds aren't well described with words, I have ...