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1999 Kia Sportage - starts, idles fine, in park or drive idle speed only
New head, intake, exhaust, main, cam and pan gaskets. Ran great for about a month, but power and acceleration declined to the point that the car starts fine and idles well, but will not rev over 1500 rpm and only move at idle speed. Step on gas and no response, idle speed only. Replaced - MAF, TPS, fuel filter and pump, fixed misfire on #4, checked for air and vacuum leaks, verified connections, O2 sensors replaced, exhaust was partially obstructed (all replaced), what appears to be EGR has been cleaned and is working as is IAC. Not sure of codes, can't get it anywhere to have done. Suggestions...
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yes it is a blown head gasket also probally a broken valve these engines do not like heat do your self a favor and stop driving it your doing more damage to it everytime you start it
Some makers used Vacuum releases for their emergency brakes which had a Vacuum switch connected to the shift assembly. This would account for a stumble if Vacuum vented out through this switch.
More common for shifting stumble to occur from Park to Drive, engaging a load on the engine, not to stumble to a freewheeling Park position. Sounds like idle speed control is sluggish to stabilize the motor.
You also have idle speed control problem with A/C, kind of shows that A/C was what kept the engine running because when you turned the A/C off, the car died.
I am going to give you some Websites for wiring diagrams. Alldatadiy.com amd Autozone.com with free wiring info upon registering your vehicle.
It seems that the base Idle speed control is not working and the A/C idle speed control is.
Also check for Vacuum leaks on the intake manifold by spraying water from a pumpbottle on the seams of the gaskets.
Check ignition Relay or ignition switch for random cutouts. The fusebox layout is on the Autozone site.
the valves are hydralic and are not adjustable.if they are noisey there may be a bad lifter or cam. if they sit for a few days they will click for awhile when started. the factiry recomends running the engine in nuetral for 5 minutes at 2000 rpm the bleed out air bubbles [or just drive it down the highway a few miles.
I have 2005 Kia Sportage with a check engine light. No other symptoms. I was told by Kia and Local mechanic that it is the fuel injectors. Error Code states that Fuel injectors are running lean. Put Master airflow- no change. Ran engine test with propane to run rich and trim never changed from 15. Car runs great. Kia dealer said that this is because we use Ethel in gas that it effects the alumium fuel rail delivery to the injectors and that it is necessary to change all of them .Kia Dealer wants $1,000.00 deposit to place order 6 fuel injectors from Kia. (Has anyone heard of that?)Also put fuel injector cleaner in tank.Does anyone have any suggestions before I spend over $1,000.00 to replace all 6 injectors or possible idea of what could be wrong?
Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
Also, checked timing and it's dead on.
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