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Why does my jeep sputter and lose throttle ? the plugs and wires has been changed already..

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  • Jeep Master
  • 4,977 Answers

Check fuel pressure and volume as if either one is bad it can cause your problem.

Posted on Apr 11, 2015

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

csmock132
  • 4669 Answers

SOURCE: 1989 GMC 2500 5.7L - engine surges and stalls at idle. Loses power at cruising speed.

Wow you have replaced a lot of stuff. Lets go back to the Fuel pump. When you replaced it did you replace the hose between the pump and the sending unit. These are common for splitting. Have you hooked up a fuel pressure gauge to check what pressure you have? It should be real close to 13 psi and should raise to at least 18 or 19 when you pinch off the return line.

Posted on Jun 02, 2009

  • 5 Answers

SOURCE: jeep starts and idles perfect no acceleration,

Sounds like the catalytic converter or muffler are clogged. There isn't much exhaust at idle, but when you accelerate your exhaust volume increases, thus if your catalytic converter or muffler are clogged the restrict the exhaust escaping out thus causing an excess of back pressure which won't allow the engine to breathe normally.

Posted on Jul 16, 2009

  • 20 Answers

SOURCE: 2005 - engine sputters when engine speed decreas

you can try reseting the cpu first by disconnecting both positive and ground wire from battery for about a hour or so and if that does not work. I could be the throttle position which is located on lower right side of throttle body on top of engine removes with 2 screws and one wire harness very easy to replace.And if it is the sensor then u will have to disconnect battery in order to reset the sensor with the computer.

Posted on Nov 03, 2009

emissionwiz
  • 75197 Answers

SOURCE: 4.3 Vortec losing power at higher RPM's.

SOUNDS LIKE YOU HAVE A PLUGGED FUEL FILTER OR A DEFECTIVE FUEL PUMP, HAVE IT TESTED.

Posted on Nov 05, 2009

  • 36 Answers

SOURCE: 1991 Dodge Ram 250 sputters unless full throttle

try a coil pack

Posted on Aug 01, 2010

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My dakota is spitting and sputtering driving and idling, Ive already given it a tune-up and changed out the throttle body sensors. Its still doing it. All I can think of now is vacuum lines.


what u can do is dont throw parts at it till the solution is found--did u change plug wires and distributer cap--throttle body and idle air cud use cleanin--hav it scanned

Mar 29, 2011 | Dodge Dakota Cars & Trucks

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My car is losing power going uphill, sputtering really bad and idles hard....any ideas on what the problem is?


Sound like it is flooding itself.
Possibly and air flow sensor telling the car it is running too lean and thus injecting more fuel and boggin you down.
Does it do this from a dead stop when you mash the throttle to the floor?

Jan 16, 2011 | 1993 Toyota Tercel

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My 94 grand am dies out when i give it gas


u need to take a fuel pressure test,,ck for vacuum leaks around plenum or intake,,egr is working,,spark plugs,,,

May 24, 2010 | 1994 Pontiac Grand Am

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I keep losing power as in sputtering and have been told it may be the egr valve, is this possible?


it may be the problem but if you havent done it already you may want to change the plugs and wires first before buying an expensive egr valve

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1 Answer

2005 - engine sputters when engine speed decreas


you can try reseting the cpu first by disconnecting both positive and ground wire from battery for about a hour or so and if that does not work. I could be the throttle position which is located on lower right side of throttle body on top of engine removes with 2 screws and one wire harness very easy to replace.And if it is the sensor then u will have to disconnect battery in order to reset the sensor with the computer.

Nov 03, 2009 | Hyundai Elantra Cars & Trucks

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92 jeep cherokee wont stay running


Check the fuel injectors and rails for clogging or maybe a seized up ECU. my only other thought is that your throttle position sensor may be shot.

Jul 03, 2009 | 1992 Jeep Cherokee Sport

1 Answer

95 jgc laredo spitting and sputtering , will not idle dies


You may want to check the Idle Air Control Valve (IAC). It is located on the back of the throttle body and very easy to change. You may have some luck just cleaning to see if it makes a difference and then you can buy a new one.

May 30, 2009 | 1995 Jeep Grand Cherokee

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Hesitates and cuts out when I accelerates, shakes and sputters!


Fuel filters are cheap and simple to change, so try that first. If that is not your problem it may be your catalytic converter. Before having that replaced, check your fuel return line. You should be able to blow thru the line with your mouth. If you can't, or it's really hard to do. . . then you have blockage. The blockage could be flooding your engine with fuel. Checking the fuel pressure with a gauge from an auto parts store may help you out. If the pressure is really high, then that may be your problem.

Apr 20, 2009 | Jeep Cherokee Cars & Trucks

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