My 1999 tahoe is shaking when I put it in reverse or drive it gets worse when I push on the gas. I have have changed all the plugs and wires what else could it be?

10

Asked by Nov 02, 2013 at 10:06 PM about the 1999 Chevrolet Tahoe 4 Dr LT 4WD SUV

Question type: Maintenance & Repair

Had it run on a machine at auto zone
and they said it was misfire or
oxygen sensor! Changed all plugs
and wires .

11 Answers

get a cheap (less than 20) automotive scanner...to find out yourself else take to an autoparts store will read them for free~

a bad ground...1/0 battery cable to chassis connection should be free of corrosion...with every start this one creates a "semi-conductor" condition...wirebrush this connection to allow "clean" power to the ECU~

1 of 1 people found this helpful.

when you've provides a full GROUNDed 12 volts to all components....reset the trouble codes using that device~

1 of 1 people found this helpful.
10

Well the idiot at the parts store cleared my codes after he run it a sec time after I changed all the wires and plugs

1 of 1 people found this helpful.

they'll come back if the computer says "warning will robinson" and flaps it's arms about~

1 of 1 people found this helpful.
19,295

99 tahoe. is it the 5.7 v8 or the 5.3?

10

5.7

a defective MAP or 02 will show on your "re-up" after reset~...that's what I was getting at with the B9 control robot reference~ with renewed ground (wirebrush the 1/0 to the chassis) these codes may NOT show...that's what I'm countin' on~

19,295

the 5.7 has the spider injector known to have the pressure regulator on it start leaking. Have a fuel pressure and leakdown test done on it. If you could give the actual code and not the description that would help me out

20

My truck is also a 99 Sport 2 door it is shaking an I replaced tires an had to replace stabilizer bar cuz it broke can someone tell me what is the problem. ..Thank you

2 of 2 people found this helpful.

Just curious, so was it the 02?

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