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Sticky valves Car wouldn't start no compression

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  • Cars & Trucks Master
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That's alot more than just sticky valves! You probably need to pull the head(s) to get a better look-see. You may have all kinds of problems like a warped head, burned valves, worn out seals, in the head and the engine may need rings replaced...

Posted on Jan 23, 2013

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Posted on Jan 02, 2017

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SOURCE: I Have a 95 Chevy

You say light spark, Brown or blue in color. And what brand of plugs did you get?

Posted on Sep 02, 2011

dttech
  • 4803 Answers

SOURCE: I was driving down the hwy & it wouldn't

Hi Marie,
It is really hard to say without actually checking the car, but it sounds like you may be having charging system problems. Possibly a bad alternator, loose battery cable or the like. Low voltage at the Powertrain Control Module (PCM) will cause the PCM to go into "reduced power mode" - also known as "limp-in mode". This will limit your accelerator and shut off some of your electrical accessories while you are driving. If the battery voltage is low, this is what is keeping your car from re-starting. Engine overheating can also cause similar symptoms.
I guess the question is - did you have any warning lamps on when this happened? Was the "Check Engine" light on? Was the "battery" light coming on?

The best advise I can give you at this point is to get the car's computer network scanned for fault codes. Any fault codes stored will help to determine what is going on. The only other instruction I can give you is don't keep trying to start it. If the battery voltage is low, continuing to try starting it can cause the battery voltage to drop low enough to clear the memory in your PCM. This would not be good when it comes to trying to figure out wnat happened.

Posted on Oct 09, 2011

SOURCE: My car wouldn't go above 50MPH. Then it

Catalytic Converter is plugged.

Posted on Oct 21, 2011

  • 150 Answers

SOURCE: car wouldn't start

their can be 100 reasons why it might not have an engine you need to be more spacific

Posted on Jun 05, 2012

aprilrosegra
  • 1 Answer

SOURCE: I was driving & my car just cut off on me &

If the starter is clicking over and not firing, it could be a clogged fuel pump or the fuel pump has gone out. Need more details.

Posted on Jun 24, 2012

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1 Answer

My car is loseing compression when you press on the gas pedal


That doesn't mean it's losing compression. It can only possibly lose compression from internal wear or sticky valves or stretched timing chain or catastrophic failure - it can't lose compression one moment, then regain compression the next moment except in cases of sticky valves or stretched timing chain.

I doubt you have any of these issues, unless your car is pretty badly worn. What's happening is your car has lost most of its POWER, not compression.

At any rate... if it's a modern car, get the computer's error codes with an OBD (if pre-1987) or OBDII (1997 and later) scan tool. If no codes or engine older than about 1987, suspect poor or old gasoline, fuel pressure or flow rate, clogged air filter, weak coil, plugged exhaust, various ignition-related issues, park brake set, accelerator linkage, serious mechanical problems (wheel bearings, etc). This isn't a question that warrants a quick "silver bullet" answer, there are TONS of things that might cause you to lose the ability to accelerate.

Aug 10, 2014 | 2005 Dodge Stratus

1 Answer

What is compression leak


Compression leak can be caused by a couple of things valves not seating sticky rings. if the car doesn't smoke it's most likely the valves not seating properly. you can get a compression gauge remove a spark plug crank the motor and watch the gauge. this will tell you what cylinder is giving you the trouble. hopefully this helps.
.

May 16, 2014 | 1999 Cadillac DeVille

1 Answer

Starting problems


check the battery in the key as the engine immobiliser may not be able to read the unit and assumes that you are trying to steal the car. It will allow all that you have said but will not allow the cpu to allow ignition and spark

Jul 21, 2013 | Honda Accord Cars & Trucks

1 Answer

1998 ford escort zx2 has compression, spark, & fuel but wont start?


any compression difference of 20 lbs or more is a serious problem. you seem like a logical fellow, so where would such a compression loss occur? rings, gasket, or valves. the standard way to find out where compression is leaking is called a wet/dry compression test. first you take readings the standard way and write them down. then you squirt a little oil into the cylinders one by one and test them again. if the compression goes up by more than 20 lbs., then the rings are the problem. if the reading stays the same as the first time then it is valves. tell that to the multiple people.

Apr 07, 2013 | Daewoo Leganza Cars & Trucks

1 Answer

1995 Dodgestealth my car just started feeling like she's not in sync with mt changing the gears and she has cut off and wouldn't start back up for a second just had dodge lift the motor alittl


Your not making sense to me

Your talking the manual transmission
being related to something else

Work on the shutting off & no start problem

Take it back to the dealer

I was just there,why wasn't all that taken care of?

Mar 08, 2013 | Cars & Trucks

1 Answer

Car running great with no warning sparkplugs oiled up now not running


What kind of car and engine,Debbie? The valve covers fail on some engines and flood the recessed holes where the spark plugs are situated.
But if they say you need a compression test BECAUSE the spark plugs are oily when removed,they might be right.

If this IS the case,the engine must surely show blue smoke out the exhaust.If it's NOT smoking,and the crankcase isn't overfilled with oil,then add a can of `SEA-FOAM engine oil treatment to it and run it a coupla' hundred miles. THEN do your compression check with the engine cold and NOT running while you hold the throttle wide open as you crank the engine.
Sea-Foam may free the sticky rings and lifters and bring up your compression good enough to buy new plugs and wiring and change out the old oil.
That's what I'd do anyway. don-ohio (:^)

Nov 14, 2011 | Cars & Trucks

1 Answer

Start car- blue smoke comes out. Using some oil- not too much. Does it need a valve seal job? Toyota Camry LE 2000 4 cylinder. 200,000 miles on it.


With 200,000 miles, it wouldn't pay to just do the valves
& seals,if that was the only issue

Cylinder are too worn by now

Drive it for a year or so, than replace or rebuild it

Aug 01, 2011 | 2000 Toyota Camry

2 Answers

My car is using a quart of oil every thousand miles and there are no visible leaks


1 quart of oil in 1,000 Mi. isn't out of the range of normal for an older car. If it's used for mainly stop & go type driving [ city driving ] it's about normal. As things wear inside the engine some oil will find it's way into the combustion cylinders and burn with the fuel mixture, the catalitic converters will clean up the exhaust so you wouldn't see any smoke from this small amount being burnt.
A clogged air filter or faulty PCV valve will cause a higher rate of oil consumption, if those are good, I wouldn't worry too much about it. Just keep checking the level.

Jun 09, 2011 | 1999 Oldsmobile Intrigue

1 Answer

Dead cyclinder has spark


You'll need to do a compression test to see if that dead hole is damaged. Hondas had problems with burnt exhaust valves and I wouldn't be too surprised if that's your problem. However, it is possible that the compression is good, if so, and if you have spark, you may have a bad injector on the cylinder.

Apr 23, 2011 | 1993 Honda Civic 4 Door

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