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Author Topic: dead spot  (Read 1335 times)

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arkypyro

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dead spot
« on: February 15, 2006, 03:34:34 PM »
Looking for advice.  My 97 TJ has a bad dead spot in the throttle from about half throttle on.  It started out several months ago and has slowly gotten worse.  No matter the RPM's if I go to full throttle it just bogs down really bad and will often backfire and pop alot.  I am thinking coil or fuel pump.  anyone had this before or any suggestions.
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/dev/null

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dead spot
« Reply #1 on: February 16, 2006, 05:05:38 PM »
I had a similar problem with another car of mine. It ended up being the TPS(Throttle Postion Sensor). Mounts on the throttle body and reads the postion of the throttle plate. Easy to remove and replace.

Peter
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arkypyro

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dead spot
« Reply #2 on: February 16, 2006, 08:56:18 PM »
10-4.  That will go on my list of items to check out.  We have a new autozone in town.  I have already spoken to the manager and he has offered to help me test things to see what might be bad.  He told me to come by when I have time and we can pull the coil right there so he can test it.  We can test the fuel pressure right there also.  I am sure he can check the TPS for me.
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arkypyro

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dead spot
« Reply #3 on: May 10, 2006, 06:32:23 PM »
Just to let y'all know.  My problem continued to get worse until Monday when I could barely get moving.  Had a local mech hook it up to his Diagnostic computer and it everything he could check showed to be good.  The only thing we couldn't check was fuel pressure.  Appearantly mine is one of the odd few that deosn't have a test port on the fuel rail.  He wanted me to take it to the dealer and have them test it, but instead of paying them $150 to test I went ahead and bought a new pump and screens from autozone for $115.  Installed it,(screens were horrible nasty) and the old 4banger is running better than ever.  I have had a small dead spot since I got it a year and a half and 30K ago.  That is gone now and I have half again more power than ever.  It feels like I am driving a hot rod.
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Offline Jeffy

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dead spot
« Reply #4 on: May 10, 2006, 06:41:34 PM »
Congrats for getting it running agian.  Saved yourself $40+ too.
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lutzke21

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dead spot
« Reply #5 on: May 10, 2006, 06:57:05 PM »
$40 bucks?  Hell no, more like $150 plus.  $150 for the test, then would have come the parts cost.  Good job either way.
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Liljeepz

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dead spot
« Reply #6 on: May 10, 2006, 08:35:14 PM »
Funny, I was jsut going to make a post about the same thing, or at least close.
My 04 tj is sputtering and cutting out almost to the point of dieing from the 2-3krpm range, its been doing it sence it was now, dealership said it was normal... but its getign a lot worce in the last few weeks... but no check engin light has came on, Dealership just told me they cant help untell a light comes on.
I was thinking a bad plug wires, but now that i read this.... may be somthing elce... Any one think it could be one of these issues?
some times it miss fires, not as loud as a back fire but sounds like a snap in the engin. :shock:
I was trying to off road the other day and the engin died trying to cral over a curb!!!  :shock:
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