Question about 1999 GMC Envoy

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Check engin light blinks after i changed spider valve

I changed egr valve throttle sencer tune up ect before spider

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Truck runs rough


In the distributor is a cam sensor, the dist must come out and apart to fix it. When you replaced the injector assembly did you replace the fuel press regulator also? If not I would do that first.

Nov 19, 2013 | 1999 GMC Jimmy

2 Answers

94 22re misses at idle


John, did you change the spark plugs?

Nov 16, 2013 | 1994 Toyota Pickup

2 Answers

I think its the transmission.


Do you have a check engine light showing in the dash? If it was an ignition problem you would have a CEL on.

Feb 10, 2012 | 2001 Ford Escape

1 Answer

I have a 94 chevy lumina it idles high in park and when i put it in gear it stalls i have replaced (one of the o2 sencers, egr vaule, map sencer, trottle sencer, and another sencer but not sure what it is....


throttle position sensor can cause the high idle as will a hole in the egr valve tube as far as stalling as soon as u put in to gear could be torque converter not unlocking but id check the egr tube first

Jun 07, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

Need to replace intake manifold how do you do this


Bonneville, LeSabre, Park Avenue 2000-2005 Intake Manifold - Removal & Installation

3.8L Engine
VIN 1 Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Relieve the fuel system pressure.
  3. Drain the cooling system.
  4. Remove or disconnect the following:
    Negative battery cable Supercharger Thermostat housing Exhaust Gas Recirculation (EGR) tube at the intake manifold Engine Control Temperature (ECT) sensor Intake manifold
To install:
  1. Install or connect the following:
    Intake manifold with new gaskets. Torque the bolts, working from the center out, to 11 ft. lbs. (15 Nm). ECT sensor connector EGR tube to the intake manifold Thermostat housing Supercharger Negative battery cable
  2. Refill and bleed the cooling system.
  3. Run the engine and check for leaks and proper engine operation.

VIN K Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system.
  4. Relieve the fuel system pressure.
  5. Remove or disconnect the following:
    Fuel injector sight shield Air inlet duct Spark plug wires from the right side Manifold Absolute Pressure (MAP) sensor Vacuum lines from the intake manifold Fuel lines Fuel injector electrical connectors Fuel regulator vacuum line Fuel rail from the intake manifold Exhaust Gas Recirculation (EGR) heat shield Throttle cable bracket from the cylinder head mounting bracket and the throttle body cables Throttle body support bracket Upper intake plenum and gasket Thermostat housing Electrical connector from the Engine Coolant Temperature (ECT) sensor Drive belt tensioner assembly EGR valve outlet pipe Lower intake manifold

    a5adffa.jpg
    Fig. Exploded view of the intake manifold and related components-3.8L (VIN K) engine
To install:


140d431.jpg
Fig. Upper intake manifold torque sequence-3.8L (VIN K) engine


4950e4f.jpg
Fig. Lower intake manifold torque sequence-3.8L (VIN K) engine
  1. Install or connect the following:
    Intake manifold using new manifold gaskets. Torque the bolts in sequence to 11 ft. lbs. (15 Nm); then, re-torque to 11 ft. lbs. (15 Nm). EGR valve outlet pipe Drive belt tensioner assembly. Torque the tensioner bolts to 37 ft. lbs. (50 Nm). Electrical connector to the ECT sensor Thermostat housing Upper intake plenum. Torque the intake plenum bolts to 88 inch. lbs. (10 Nm). Throttle body support bracket Throttle cable bracket to the cylinder head mounting bracket and the cables to the throttle body lever EGR heat shield Fuel rail. Torque the fuel rail bolts to 88 inch. lbs. (10 Nm). Fuel lines Fuel regulator vacuum line Fuel injector electrical connectors Vacuum lines to the intake manifold MAP sensor Spark plug wires Fuel injector sight shield and air inlet duct Negative battery cable
  2. Refill and bleed the cooling system.
  3. Run the engine and check for leaks and proper engine operation.

Hope this help (remember rated this).

May 17, 2010 | 2001 Pontiac Bonneville

1 Answer

It is the vORTRC4.3 iT IS THE VORTECH 4.3 ENGINE. I have replaced timing chain & gears, Distributer, and fuel filter, fuel injector "SPIDER", i HAVE CHANGED OUT PLUGS & WIRES AND THIS THING STILL...


Sounds like a possible Idle Air Control valve, or more likely there is carbon stuck in the EGR valve. If the EGR valve is stuck open because of carbon chunks, the engine will run very rough, barely idle, and surge. Remove the EGR valve, clean the inside of it with carb cleaner, and replace the gasket with a screened gasket. This doesnt allow carbon the reach the valve and clog it again. Valve is located on front of the intake manifold. . .under the rubber intake boot going into the throttle body

Feb 23, 2010 | 1993 Chevrolet S-10 Blazer

1 Answer

Car wants to stall changed injecter,egr valve iac


hi
check the all vacuum pipes is their any leaks.

Feb 21, 2010 | 1994 Saturn Sl

2 Answers

Nissan Xterra EGR valve troubleshoot


check the EGR by disconnecting it to see if there is a change in the engine at idle

Oct 03, 2009 | 2006 Nissan Xterra

2 Answers

Engine managment light is illuminated and the engine is not running unevenly


its a dummy light and its probly in the emsission system somewhere like a bad O2 sensor or a bad EGR valve PCV valve something vaccuum controlled get it put on a diagnostic machine to find out for sure (the dealership has the best diagnostics machines for your car) also you may want to look over all your vaccuum lines also to make sure that none of them are cracked or leaking because that will make the engine light come on as well.

May 06, 2009 | 2002 Daewoo Lanos

1 Answer

CAR LOOSING POWER. CHECK ENGINE LIGHT ON. ONLY CODE IS CYLINDER 2 MISFIRE. JUST HAD A COMPLETE TUNE UP. TRIED NEW MASS AIRFLOW. THINKING IT MUST BE THE ECU COMPUTER. THERE IS A MAJOR HESITATION IN...


I have a 1999 Protege 1.6L with 93,000 miles. And a
1996 1.5L with 170,000 miles.
When my light came on, I got the EGR code read out at Advance Auto ($0). I googled 'Mazda EGR' and found this is frequently due to carbon buildup in the throttle body. It seems the carbon restricts the flow from the EGR, which then calls for a more open valve, and the error code is "excessive flow". Go figure.

Very easy to disassemble throttle body (just check to see where the EGR line is attached to the intake air path, just prior to injector assembly). Sure enough, a clump of carbon around the EGR port in the throttle body. Cleaned it up with a paper clip, Q-tip, and carburetor cleaner. Total cost < $3.
Cleared to code. No light on now, car runs fine.
If your "EGR VALVE" is bad,
you can get one cheap at the url below, and they take Pay-Pal.
Then you can install it of have it installed.
http://www.autoparts123.com/?gclid=CJual4Dv65gCFQS7sgodxk592A

Sometimes...
A less expensive fix is to replace the engine Coolant/Antifreeze "Temp Senser"
This will cut fuel to the injectors if not working properly.
Also replace the engine coolant "Thermostat",
when changing "Temp Senser".
You can pick up both at Auto-Zone for about $35.00.
This fixed our 1996 model. The 1999 model was fixed by replacing the
EGR Valve.

Hope this helps.
"Catch me on the flip"
"Mo"

Jul 22, 2008 | Mazda Protege Cars & Trucks

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