Question about 2005 Suzuki Liana 1.3

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Engine change cam sensor is not working properly what can i do. when engine temperature is cool engine r.p.m not stable when it became ho it became normal

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CEL glowing, did you connect a scan tool. and it shows DTC codes
for the CMP???, or is this a pure guess?, Cam Sensor bad.
elaborate , please
no country stated, do cant comment. as some countries didnt use. OBD2 until 2006> but the CEL still blow, running bad at cold or hot idle. your post really is that, MISFIRE at Cold only idle.
i bet all else is theories.
tell more get more.
get in car, tune key, CEL glows, start car, does CEL go out?
if not out, that means there are stored error codes, so scan it.

Posted on Nov 20, 2013


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I have 2008 PT Cruiser; getting P0128 code; I've changed thermostat & temperature sensor; I have to fill the anti-freeze container every 2 weeks; temperature hand will not always be at half way point. ...

This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.
A code P0128 may mean that one or more of the following has happened:
  • Low engine coolant level
  • Leaking or stuck open thermostat
  • Faulty cooling fan (running too much)
  • Faulty coolant temperature (ECT) sensor
  • Faulty intake air temperature (IAT) sensor
Past experience indicates that the most likely solution is to replace the thermostat. However here are some suggestions on troubleshooting and repairing a P0128 OBD-II code:
  • Verify coolant strength & level
  • Verify proper cooling fan operation (check if it's running more than it should). Replace if necessary.
  • Verify proper engine coolant temperature (ECT) sensor operation, replace if necessary.
  • Verify proper intake air temperature (IAT) sensor operation, replace if necessary.
  • If the above items check out good, replace the thermostat
you have all ready replaced the thermostat with the proper temperature opening thermostat(hopefully) and coolant sensor, you say you have to refill the coolant every 2 weeks this indicates that you either have a coolant leak that needs to be checked out and repaired or you are burning coolant which indicates a possible head gasket problem which will have to be checked. a low coolant level will set this code as there is not enough coolant in the engine to get the engine to operating temperature and stay there. these last suggestions is where I would start to look.

Sep 24, 2014 | 2008 Chrysler Pt Cruiser

2 Answers

Where is the 98 Lincoln mark 8 cooling fan relay.

Does it run when the engine is cold, how about with just the key on engine off

Jun 20, 2014 | 1998 Lincoln Mark VIII

1 Answer

I have a problem with my car Peugeot 207 1.4 8 valve petrol which was serviced and had changed thermostat. Everything was fine until winter started, at temperatures below 5 degrees Celsius temperature...

This is totally normal. All radiators contain an antifreeze/ antiboil component when filled as per manufacturers instructions. This stabilizers the temp of the coolant, reducing fluctuations in temperature. The thermostat is heat responsive. Basically a piece of spring steel heated to a temperature then cooled, so as to retain the memory of when to react. Replacing the water temp sensor on this occasion was probably unnecessary, tho in saying that, I have replaced mine & friends with beneficial results.

Mar 22, 2017 | 2005 Peugeot 405

1 Answer

Car hiccups and stalls

Although your temperature gauge may show that it works, some models have a second temperature sensor for the engine management system.
That second sensor provides info which sets curb idle and timing advance. The "Cold start" feature is a part of this. The hic-cup is something of a bucking symptom as the engine controls toggle between hot and cold run settings repeatedly as water temperature is not stable.
In the past, I found several 1984 engines having defective thermostats which are tied into "Step-up" solenoids for the curb idle. What happens is idle speed is suppose to drop when the engine is hot.
When someone adjusts the curb idle while the engine is on the "cold setting", the setting(rpm) will be too low once the engine has heated up and the part drops to a hot setting.
So to clearly define your problem, you have 2 stemming from the same defects. The "in motion" problem is caused by timing changes based on temperature and the "idle" problem is caused by improper adjustment of the curb idle solenoid because of unstable operating temperature.
What you want to do is change your thermostat. This will give you a stable temperature. Then let the engine heat up and you should notice a "click" and the engine should idle down. It may stall. Then turn the idle rpm up until the engine will not stall.
The hic-cups should disappear once the operating temp is reached. If you still have problems then look for the water temperature sensors before replacing expensive parts.

May 24, 2013 | 1984 Ford Mustang

1 Answer

When car is warm engine races at idle.

it is possible the engine to have a vacuum leak,**** air,or the temperature sensor not to work properly and give wrong message to PCM as cold start. clean also the throttle body from any dirt.

Aug 31, 2012 | Cars & Trucks

1 Answer

Equniox have changed thermosate and coolant sensor and no leak still running hot

There are several things that can cause an engine to overheat. This is why the problem should be DIAGNOSED before spending a bunch of money replacing parts. You can go broke replacing parts and never fix the vehicle.

First, is your radiator cooling fan working? If not, then you must diagnose the cooling fan and cooling fan circuits to find out why.

Did you replace the coolant sensor for the computer or the one for the gauge? (Yes, there are two engine coolant temperature sensors) This brings us to the next question:

Are you sure the engine is actually overheating or is it possible that the gauge could be "lying" to you?
The actual engine temperature should be taken with an infrared thermometer to see if it agrees with the gauge.

When you changed the thermostat and the temp sensor, did you bleed the cooling system properly? There may be air trapped in the engine.

Has the engine been checked for a possible blown head gasket? If it has overheated at all, it is highly likely that you may have a warped cylinder head and/or a blown head gasket.

Is the water pump circulating the engine coolant like it is supposed to? You could have a damaged water pump impeller or a clogged radiator keeping the coolant from circulating properly.

Sep 10, 2011 | 2005 Chevrolet Equinox

2 Answers

My engine temp gauge goes way up when the car is stuck in traffic, when I begin to roll the temperature gauge goes back down. I assume that this is a sensor issue, can this be changed easily?

I would assume that the sensor is probably doing EXACTLY what it is designed to do....measure engine temperature! An engine will get hot when sitting in traffic if the radiator cooling fans are not working. The engine temperature will then go back down when the vehicle starts moving and air begins to flow through the radiator.
Get your radiator cooling fans checked!

Please also review this article: What Else Could Be Wrong?

May 09, 2011 | 2000 Hyundai Elantra

2 Answers

I have a dodge grand caravan 2006 with trouble codes p0126 and p0406 what does that mean? and how can I fix it?

Hi, sorry I don't have a manual for your van but here is some general information for these codes.

P0126 Insufficient Coolant Temperature for Stable Operation:

basically, the engine is running cool. Check your thermostat to see if it's closing properly. If it is closed when removed, you may want to get a higher temp thermostat. The thermostat is usually in a housing bolted to the engine at the end of the upper radiator hose.

P0406 Exhaust Gas Recirculation Sensor A Circuit High:

This indicates the EGR position sensor signal is out of range. The problem could be the wiring or the sensor itself. Check the wiring first. If it looks good, consider replacing the sensor. I think in your van the sensor may be integrated into the EGR valve itself.

EGR valve:

May 08, 2011 | 2006 Dodge Grand Caravan

1 Answer

The car doesnt run

you have a sensor some were not likeing the heat. they can go this way sometimes. you need to run diagnostics as the engine is warming up and have it set to view the engine as it warms up to find the problem. it could be a cam sensor as they prone to do this when they are hot then work fine when they are cool.

Jun 18, 2017 | 1993 Dodge Shadow

2 Answers

Ls400 problem

Seems like a timing sensor maybe out. Get a computer diagnosis done on the car from a local garage and check that all electronics are functioning properly. That might identify the problem. Also maybe try some of the petrol additives which clear the petrol lines out. Simply add a bottle when u next fill up. Hope that helps.

Jul 16, 2008 | 1996 Lexus LS 400

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