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L4-2.3L

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I am having problems with my car overheating when the AC is on and I'm not driving. No problem while driving. Help please!
Hi there. This might be an issue caused by two possible sources. First, it's possible that your thermostat is not working correctly or opening later than it should. Second, it is also possible that you have an obstruction of coolant...
Question
I have a 96 Ford ranger with cel p0340 I have recently done a timing belt, engine runs great replaced cmp sensor cel still on
Hi There, This may happen for a couple of reasons. First, check to be sure that the connections to the sensor are clean and not faulty or broken. Secondly, check to be sure you replaced the correct sensor as there...
Question
Scary
Hi there. Sometimes excessive standing water or issues as you've described with make an existing minor electrical glitch a major inconvenience. It's possible that you may have an exposed electrical wire that is creating a short in the ignition system,...
Question
clear/replace EGR valve
Hello, thank you for writing in. For exact specifications on tools needed and a step by step procedure, you will need to access a service manual for the vehicle. Typically you would expect to use a 12 mm socket or...
Question
changed thermostat and radiator, temp gauge goes to hot when sitting still mostly, then goes back down to normal temp. Happens eve
Hi there. If you did not properly bleed the cooling system after completing these repairs, it's more than likely that you have air bubbles inside the coolant system causing this problem. However, it could also be due to a bad...
Question
Power steering
This may be a result of a broken power steering belt, a leaking pump or a pump that has failed. The power steering system operates on very high pressurized hydraulic pressure (in some cases as much as 300 psi). As...
Question
AC problem
You need to check to make sure the condenser is not blocked in the front and that the fans are coming on when the a/c is on. The system may work okay in cooler weather if fan is not working...
Question
why my 1985 190e mbz lose power at 3k rpms
If the engine is losing power, the cause of that can be diagnosed, and any required repairs made, if you request an engine loss of power diagnostic. To give you an initial idea, although there are many possibilities, a partial...
Question
low fuel level light on 2002 Honda Accord
Hi there. It is more than likely the electrical harness or the sender unit itself that is faulty; so you are on track with your diagnosis. This is common on older vehicles (more than 15 years old) especially if the...
Question
2006 Mazda 3 makes a hum sound when accelerating. Sound is louder at higher speeds but stops when car is out in neutral and still
Hi there. If the humming sound is coming from your vehicle while it's in gear, then the likely source is the transmission. It is possible that CV joints or wheel bearings might also be the source of your problem, but...
Question
Hi Steven, I have a 1995 pontiac grand am, quad4 16 valve. Today the upper radiator hose broke and I replaced it. The problem I am
There could be trapped air in the cooling system. The sensor could be dirty or defective or there could be a fault in the warning circuit. In some applications, there is a potential delay (documented in the Factory Service Manual)...
Question
Identifying cause of serpentine belt being thrown
Hi there. It is always a good idea to replace all pulley's when you have a catastrophic serpentine belt "issue" as you've described. In most cases, the force of the belt breaking will cause a slight warp of one of...
Question
Car gets stuck in park and won't start SOMETIMES. Hear one click upon starting but starts working after a few times.
The shift interlock and the intermittent starting issue are likely separate issues. However, the brake light issue may be related to the shift interlock problem as the circuitry and components are common. The intermittent starting is relatively easy to diagnose....
Question
Car won't start
Check to see if there are any stored diagnostic trouble codes. Be sure you have a fully charged battery that passes a load test. Confirm that the engine immobilizer system (security system) is not activated thus preventing the car from...
Question
2003 Ford Focus overheats with A.C. on took to Midas which replaced the resovoir and still doing the same thing thermostat issue ?
Hi there. The problem with trying to diagnose this type of issue of overheating when the AC is on, it that it's very difficult to replicate the symptom and find the root source of the problem. However, in general, when...
Question
check engine light on with code P0139 and P0841. Added Techron last fill up and now light went off, on and off again. What is go
The trouble codes that you have downloaded have not arisen due to the use, or non-use, of the fuel additive. Code P0841 simply refers to an abnormality in the transmission fluid pressure sensor circuit. Possible causes of that code include...
Question
Code P0139 and P0841
Hi There, Many times multiple codes may relate to similar things or one may be a cause of the other, however in your case these two codes are unrelated and relate to two separate functions in your vehicle. Code P0139...
Question
honda accord will not start
Hello, thank you for writing in. In these situations always start with the basics. First, when turning the vehicle over to try and start it, a slow cranking speed may indicate you have a weak starter or battery. The starter...
Question
Changed our intake now our car is sputtering and acting like it wants to stall when we stop
Hi there. What you are describing is typically an indication of a vacuum leak or an electrical sensor connection that may not have been properly attached or is faulty. It's also common for a stored error code that wasn't cleared...
Question
my car will crank but will not start 1998 honda accord
The first thing to do is to check to see if you are getting spark to the spark plugs? If not the most common cause of the no spark is the crank sensor built into the distributor. I recommend checking...

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