Question about 1996 GMC Yukon

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Stumbles 7 skips and wants to shut down once in a while

Just tuned up ,& replaced tps & idle air control bad egr or bad map sensor o2 sensor

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I had to replace the tube going from my pressure sensor to just under my throttle body and that fixed mine hope it helps

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

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SOURCE: 1991 s15 4.3 TBI jimmy will not idle

I had this problem also and it turned out to be egr solenoid

Posted on Feb 20, 2010

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SOURCE: Failing NJ State Inspection for Low Idle Emissions

Based on what your write up says it would have to be a timing issue or Mass Air flow Sensor (MAF) .If your getting 20 HG's at idle steady there can't be a vacuum leak.Your a little on the rich side so its probably a dirty MAF.Try cleaning it first and see what you get . If that doesn't work then reset timing.
Keep me posted on this .

Posted on May 19, 2010

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SOURCE: 95 5.7 gmc sierra runs bad under load relaced ecm

This engine may just be wore out. Did you check the compression?

Posted on Nov 15, 2010

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SOURCE: P0171, p0300 new codes. Has

p0300 is a misfire code. have you replaced the spark plugs?

Posted on Jan 07, 2011

hockey_fa58
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SOURCE: 1997 gmc after warm up truck hesitateswith acceleration and has low power up hill no codes

Sounds like Exhaust gas recirculation valve (EGR) Does it stumble on acceleration

Posted on Jan 17, 2012

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1 Answer

Engines cuts off completely when DRIVE or REVERSE is engaged. Engine idles in P or N


Does engine stumble and idle too low and die? This can be tune up issues, dirty idle air motor, dirty or sticking EGR, bad coolant temp sensor, clogged cat converter or muffler, bad O2 sensor, weak coil of bad ignition module, and more! You need diagnostic tests and readings.

Mar 28, 2016 | Cars & Trucks

1 Answer

My 2004 Pacifica won't stay running after I take my foot off the gas peddle?


Check for dirty IAC (idle air control), maybe EGR and throttle blade dirty also. Could also be bad coolant temp sensor, MAF/MAP, bad o2 sensor, tune up items.

Jul 28, 2015 | 2004 Chrysler Pacifica

1 Answer

2001 eclipse engine dies when acceleratoris not engaged. Engine will not idle.


Idle is controlled by idle air motor and they can get dirt clogged and be cleaned. Of course, all tune up items can also cause this, as well as bad O2 sensor, TPS, EGR, and others.

Dec 16, 2014 | 2001 Mitsubishi Eclipse

1 Answer

Erratic idle & shutting off


have you replaced the egr valve

Feb 08, 2014 | 1990 Ford F150

1 Answer

1993 Honda Accord loses power,stumbles I pat the gas and it will pick back up check engine light comes on and it will run fine


why not finish the tuneup, spark and air filter.
also the EGR valve is a 50k service point.
if the EGR sticks open, Just before a stop sign driving
this is a sure sign of a stall ,by EGR. failure (clean it)
my pat gas.
so you are really saying, the rpm drops way below normal?
at idle , then stalls.
but the fast right foot saves the stall?
below 400rpm most cars stall. 300 for sure.
the CEL will flash on just at or just after the stall. RPM based action it is.
and if the stall is easy to save?" is it, super easy,? then the ISC is failing, the idle speed controller.
if on the other hand the skipped fuel tune up, its all nasty bad spark then all hope is lost , for ISC and ALL.
do the tuneup first, see the list?

Nov 08, 2013 | 1993 Honda Accord

1 Answer

95 Mazda Millenia- P1195 & P1522: I have already replaced the mass air flow sensor all but 2 O2 sensors, and I have replaced the selenoid for the EGR according to the P1195 code problem/solution i


P1195 refers to the map sensor, not the egr solenoid. It could be a bad map sensor, bad wiring, or possibly a bad or loose vacuum hose.
P1522 refers to the air control flap actuator on the intake manifold. You can see about yhat at the link below.
https://www.autocodes.com/p1522_mazda.html

Sep 06, 2017 | 1995 Mazda Millenia

1 Answer

1995 chevy k1500 4.3 5 speed 150,000 stumbles at idle and while driving slow, and even at higher speed while maintaining my speed it will go erratic and smokes black. Have changed map sensor and ignition...


Did you change the TPS - throttle position sensor . Have you check for vacuum leaks . O2 sensor ? videos on youtube on how to test !
GM OBD Trouble Code 44 4 & 6 cylinders ? head gasket Do a compression test on those two cylinders .

May 01, 2017 | 1995 Chevrolet K1500

1 Answer

Put a lt1 engine in 1994 caprice it skips and wont hardly go up hills and back fires


Hello! are you using the harness for that year LT1? the fuel air mixture is controled by the Manifold Absolute Pressure (MAP) sensor, the Throttle Positioning (TPS) sensor and the Oxygen sensors...When you put your foot in it without O2 sensors there isn't any control over fuel/air mix and ignition advance if the MAP and TPS aren't connected...I'm assuming your using the LT1 ECM...Guru...saailer

May 03, 2012 | 1994 Chevrolet Caprice Classic

2 Answers

Throttle/Idle/running problem - wants to run too fast, or stall out


RPM's up and down check EGR valve and sensor. EGR valve and sensor control idle. That's why your getting the surging on rpm's and this could be giving out the other codes. If mass flow was bad car will not start and the same for the map sensor. O2 sensor measures gas and air for right mixer. TPS controls 0-60 speed as in throttle respons.

Apr 28, 2009 | 1989 Pontiac Grand Prix

2 Answers

1991 s15 4.3 TBI jimmy will not idle


Might just be the timing is off a bit, turn your distributor or if it has a carburator, the choke might need to be turned up.

Mar 18, 2009 | GMC S-15 Cars & Trucks

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