The car hesitates and it takes 2 seconds to move after pushing the gas

Asked by Sep 27, 2014 at 04:32 PM about the 2006 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

So the jeep get about 140,000 miles .  It was driving fine , the RPM was little not steady ,
So time for some tune up , i used 2 seafoam in the gas tank back to back , then i change
the spark plugs , air filter , the oil , it drive great for a week , then the car start to hesitates
while driving and sometimes it take couple of seconds to move after pressing the gas , so
any ideas why is this happening ?

7 Answers

90,815

Check the fuel pressure and flow. The sea foam could have cleaned up the crud in the tank and that stuff will plug filters and wreck fuel pumps. You could also check the TPS for proper operation.

How to check the TPS ? And make sure its working good ?

90,815

You need an ohm meter and the chart that shows the signal in, signal out and ground, disconnect the sensor, hook up the meter to signal in and signal out, as you slowly open the throttle watch for any fluctuations or drop outs in the readings, then move one connector to the ground and make sure that the sensor isn't shorted internally to ground on the signal in and out contacts.

I have changed the TPS , but still the same !!

7,505

When you press on the gas, vehicle start to slowly move, then it jerks and takes off. The governor pressure sensor and transducer need to be replaced. Its taking off in (limp in) mode. Then it come out of limp in and shifts normally. Ive seen a bunch of these.....

1 out of 1 people think this is helpful.
90,815

Have you had the rig checked for codes?

7,505

I was talking hypothetically, If you are responding to me, I'm trying to help as well..lol If it is governor issues it doesn't always set a code.

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