Last post on Dec 02, 2013 at 9:06 PM
You are in the Chevrolet Suburban & Tahoe
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Chevrolet Suburban, Chevrolet Tahoe, Chevrolet Tahoe Limited/Z71, SUV
#62 of 381 Re: 99 Tahoe Starting Problems [richarr3]
Apr 12, 2007 (5:21 pm)
As your problem is very intermittent it kind of says you have a loose wire connection somewhere. And it most certainly is not the negative battery cable. If it was, your engine simply would not crank when you try to start.
I have a '04 Tahoe LT and have had a couple bad connection issues.
The first one was wire harness to MAP sensor. When engine was in idle it shut off when I touched the wire harness. And this did not even leave a code in the computer.
I'm not sure if loose MAP sensor wire would prevent engine from starting but it could. Map sensor is located on top of the engine by the fire wall under the plastic engine cover.
Another problem I had with MAF wire harness. Soldering those wires to connectors improved my engine performance a bit. This should not prevent the engine from starting though.
You could have a bad connection on the crank shaft position sensor or the sensor itself is bad. This sensor is located behind the starter motor, which must be removed to gain access to the sensor. This is not very bad job if you are a hands on person. It does require a torque wrench though for tightening the starter motor bolts to correct tightness.
Crank shaft position sensor cost about $70 I think. I replaced mine and it was $65 + tax. Replacing it would rule that out as a problem and this sensor will prevent the engine from starting if it goes bad or signal does not get to the computer for a bad connection.
Another sensor that would not let engine start is cam shaft position sensor. It works the same way as crank shaft sensor and is located in a more difficult place on top of the engine by the fire wall. It is lower on back side on engine that the MAP sensor and is quite hard to reach. I would think that a good mechanic would be able to change this without removing the intake manifold from the engine.
#64 of 381 1999 Tahoe Intermittent Starting
May 31, 2007 (8:19 am)
I have a 1999 Tahoe that is occasionally having trouble starting. At times it cranks, tries to start, and dies, so I knwo it is getting fuel and ignition. It is not the starter or battery. Appears to happen only in mornings or in humid environments. Sometimes after several attempts it will start, but most of the time it will either start first time, or will not start at all after multiple attempts. I have seen similar posts on this issue, but have not seen a resolution. Has anyone solved this problem??
#66 of 381 2000 Tahoe with 5.7L - Problem cold start
Aug 07, 2007 (2:04 pm)
Truck is hard to start when cold start in the a.m.
Must turn ignition on and off several times before engine will fire. Have to give it gas to start. Almost sounds like it’s “gargling” when it does. The problem goes away once warm. Seems more of an issue with a full tank of gas.
Fuel pump replaced last summer.
Not starting as fast as before.
Truck stalled twice this summer when coming to a hard stop with the A/C on.
Service Engine light came on 2 weeks ago. P0452 Fuel Tank Pressure Signal circuit Input below minimum.
The difficulty starting has become more serious over the last 2 weeks.
#67 of 381 Hard starting Tahoe
Oct 29, 2007 (5:46 pm)
2001 Tahoe 5.3L. Jump in and turn the key on the truck will crank but not start. If i try to crank it again it acts like it fluids and i have to let it sit. If I get in and turn the key on and let the fuel pump cycle once or twice it will start no problem. Fuel pump was replaced and also the fuel regulator. Please help. I have seen some posting about the security. My security light does not come on when i have this problem.
#68 of 381 Re: 2001 Tahoe cranks but won't start [jp3texas]
Nov 02, 2007 (12:11 pm)
Did you ever find an answer. I have a 2001 Suburban that does the same thing. It won't start on the first turn of the ignition but will fire up fine on the 2nd or thrid tuen. No running problems once started and the security light never comes on.
#70 of 381 2001 Tahoe Starting Problem
Nov 25, 2007 (4:51 am)
I have a 2001 Tahoe and walked out this morning to go to church and it wouldn't start. No crank or anything. Voltmeter looks good 12 volts but it will do nothing. No warning signs, no other times, just will not even try to start. Does anyone have any suggesstions?
#71 of 381 Fouled/Fuel Rich Spark Plugs
Nov 28, 2007 (3:08 pm)
My 1993 S10 Blazer continues to have starting problems. We have droped the fuel tank and cleaned it. Checked and cleaned the fuel pump screen. I sent my blazer to the shop for help. They said my spark plugs were fouled/fuel rich.
Help, I do not know where to turn next or try to fix this problem. Has any one any suggestions? Thank you.