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Low and poor engine start - 2001 Toyota Corolla

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Check the battery if it still full charge if not charge it . check fuel line so that if there is leak it can be sealed . check the carborator system look if it is dirty .

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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How to tell if oil pump is starting to go out?


1. Engine Noise. With a bad oil pump sufficient engine oil will not get to all parts of the engine, especially the top end, and you will get engine noise with metal parts that would normally be lubricated and quiet knocking due to metal to metal contact. Engines with hydraulic lifters that become noisy can be a sign that they have insufficient oil supply. In addition to the hydraulic lifters, your valve train may begin to make noise if your oil pump begins to fail. Valve train components need to be properly lubricated as well. A bad oil pump can result in a lot of additional noise from your valve train system.

2. Higher engine temperature. Poor lubrication because of poor oil flow generated from the pump will cause friction in the engine and the engine temperature will rise. Good oil flow is essential for lubrication and reducing friction to a minimum.

3. Low oil pressure. The oil pump generates oil flow through the engine but tolerances between metal parts produce the oil pressure. Very worn engine bearings will result in low oil pressure. Thus a worn engine will have low oil pressure even though the oil pump may be fine and there is no issue with the oil pressure relief valve either. However you will also experience low oil pressure due to a failing oil pump because poor oil flow will also result in lower oil pressure.

If your oil pressure warning light has been triggered in your engine, the causes of the low pressure need to be properly investigated because the problem may not be with the oil pump. People replace oil pumps assuming that is always the problem and then still have low oil pressure because the pump was not the problem to begin with.

Dec 05, 2015 | Cars & Trucks

1 Answer

Ok 1989 f super duty no start when hot. showing codes 112,117 122 and998


P0112-intake air temperature circuit low input
Possible cause dirty air filter, poor electric connection, faulty sensor

P0117- engine coolant temperature circuit low input
Possible cause faulty sensor, low coolant level, faulty thermostat, poor connection at ect

P022- throttle position sensor/switch "a" circuit low input
Possible cause faulty sensor, poor connection

P0998_ shift solenoid F control circuit low

Oct 05, 2015 | Cars & Trucks

1 Answer

08 equinox low heat


Low or poor heat usually means your thermostat is stuck open. To check with a cold engine, remove the rad cap and start the engine look inside there should be no water flow, if its flowing the stat is open.

Mar 14, 2015 | 2008 Chevrolet Equinox

1 Answer

I have an 03 Saturn Vue with a 3.0 car has been running fine until Friday wife drove it to the store car started running rough then died now car will not start and has a poor crank anyone have any ideas of...


Engine needs to crank over strong and steady to have a chance of starting. Youi said it has a poor crank. Battery may be low or bad. If you get the engine to crank over corrrectly and it srill does not start check fuel pressure, spark and injector pulse.

Nov 30, 2014 | 2003 Saturn VUE

1 Answer

97 7.3 diesel hard starting


This is a good engine but they need work from time to time. What is the outside temperature while you experience this hard start? If you plug in the block heater, does the engine start better? Is the engine light on or does it come on at times while you are driving? Hard starts can be related to several different issues. This engine isn't easy to work on unless you have an advanced scan-tool. You need to look at live data and run some tests. The more common failures are clogged fuel and air filter. Dirty ,worn, or defective fuel injectors, low fuel-line fuel pressure, poor oil quality or low oil level, worn or defective ICP sensor, low injection pump pressure, loose or leaking IPR valve, or low compression. These examples should help get you started. You may need to have the truck diagnosed so you know what direction to go in. If you need any additional information, please write back. Good luck.

Mar 08, 2014 | Ford F-350 Cars & Trucks

1 Answer

Engine knock


too low fuel octang, poor quality gas, or contaminated fuel, check fuel and igniton systems. Worn cam/crank/rod bearings, wristpins. Low oil pressure, so check your oil level.

Dec 13, 2013 | Cars & Trucks

1 Answer

Engine shut off willnot crank after heating up geting code 34


DTC - 34 MAP Sensor Circuit Error (Signal Low Indicating High Vacuum)

The ECM uses the Manifold Absolute Pressure (MAP) sensor as an indication of engine load. High voltage would indicate low engine vacuum and higher engine load. Low voltage would indicate high engine vacuum and lower engine load. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

Fault Code Description:
* 34 - MAP sensor circuit error (signal low indicating high vacuum)

Symptoms:
* Poor engine performance
* Engine running lean (not enough fuel, hard starting, lack of power)

Common Problems:
* GM MAP sensors do not commonly fail
* Due to erratic engine vacuum, other engine performance problems can cause a code 34 to set


Good luck (remember to rate this answer).

Mar 20, 2011 | Buick Riviera Cars & Trucks

1 Answer

My engine won't start.


The oil light began to flicker beacuse of low oil pressure with the lower RPM I expect. Four things for your engine to run: 1, Spark, 2, fuel 3, compression and lastly the timing.
While running at higher RPM how well (or poorly) does the engine run?
This may be as simple as a clogging fuel filter, low pressure = poor fuel stream which = poor performance.
May be the fuel pump failing too.
Other ideas; starved for air, very dirty air filter?
Also corld be crank, cam or MFA sensor too. Sart easy with the fuel filter and work from there.

If I may be of additional help, please let me know.
Tom

Apr 25, 2010 | 2001 Mitsubishi Eclipse

2 Answers

MAP sensor output voltage too low?


poor start, very poor gas millage

Jul 31, 2009 | 1993 Mitsubishi Mirage

1 Answer

Engine won't start


in the engine.

1. you may be low in oil
2. poor electric flow. (spark plugs, high tension wires, etc)
3. bad compression
4. bad fuel-air mix

have a mechanic check.

hope it helps.

Aug 05, 2008 | 1994 Honda Accord

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