20 Most Recent 1999 Daewoo Leganza Questions & Answers

This P0507 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0507 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is greater than the desired (pre-programmed) RPM. In the case of GM vehicles (and possibly others) if the idle speed is over 200 rpm higher than expected, this code will be set. A P0507 DTC trouble code may be caused by one or more of the following: A vacuum leak Leaking air intake after the throttle body EGR valve leaking vacuum A faulty positive crankcase ventilation (PCV) valve Damaged/failed/dirty throttle body Failed EVAP system Failed IAC (idle air controller) or faulty IAC circuit. This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect the intake air system for air or vacuum leaks and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns. If you have an advanced scan tool that can interact with the car, command the idle higher and lower to see if the engine responds appropriately. Also check the PCV valve to see if it's blocked and needs to be replaced. Check the IAC (idle air controller) if equipped, verify it's operation. If available, try swapping in a new throttle body to see if that fixes the problem. On Nissan Altimas and possibly other vehicles the problem may be fixed by having the dealer perform an idle air relearn procedure, or other relearn procedure

Sounds like low fuel psi .try changing fuel filter

You have trans slippage. Check fluid level and condition. Your trans is probably fried.

You might have a bad hydraulic valve lifter (assuming this engine has them)... you could try an aftermarket product designed to unstick valve lifters.... any auto parts store carries them.

pour full mobil oil

Which engine does it have? 2.4L SOHC, 2.4L DOHC or is it the 2.7L DOHC? Both 2.4l engines are interference engines and the 2.7L is chaun drive.

if it goes away that fast it is normal.

Sounds like your car alarm (possibly factory installed) is somehow tied to this. Try disconnecting car alarm at the fuse box and see if this still occurs...

is this a question.. there are many hoses, like 10? all of them? who can DIY question where to get parts. how has best parts. i can think of lots of questions related to changing hoses. are you asking the basics, the pure raw basics.? 1: drain coolant 2: remove clamps. 3: twist hose, if it dont come off use a knife to cut hose off. 4: at heater core hose NEVER yank that hose, ever, or spend all 3 day long weekeng fix that...... i warned you. 5: hoses back now, clamps set. 6: fill 50% AF coolant. burb out all air, do not use side overfill take to judge levels ever use rad full visual checks. only. until ALL AIR IS OUT. basics? why not say what you want.? you even left out the HOW word, or? as you wanted just 3 words, and very vague. here is an example. what are all steps, in replacing all coolant hoses , DIY , no experience level answers. or how many hose are there? is one more question. or read Car repair for dummies $12 to get started http://www.amazon.com/Auto-Repair-Dummies-Deanna-Sclar/dp/076459902X books are still in Vouge