Question about 1999 Chevrolet Tahoe

1 Answer

My 1999 Chevy Tahoe wont start unless i spray starting fluid into the air intake but once it starts it runs fine, The fuel filter is brand new in it too, if it is the fuel pump how much will it cost me?

Posted by on

  • Anonymous Mar 25, 2014

    2002 chevy tahoe only starts when I tap the fuel tank runs fine till ITS off

    and I try to start it again

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 784 Answers

It is not a fuel pump problem.
It a cold start valve problem. It didn't open. There are 2 things to check.
1- The cooling thermal sensor is not sending the proper signal to the ECU to turn on the cold start valve.
2- The bad solenoid inside the cold start valve causing it not operational.
Case 1 you can easily replace the thermal sensor.
Case 2 checking this requires professional skill to confirm if there is a signal at the valve during the start.
Good luck

Posted on Aug 04, 2010

  • 2 more comments 
  • George f1a Nov 14, 2010

    5.0 or 5.7 Vortec engines do not use a cold start valve, these engines use a fuel injection system that has individual fuel injector popplets ( with a little steel ball at the end, by the intake
    port) for fuel to go through there must be enough fuel pressure ( and volume). Check for
    60-66 PSI if anything less than 50 it will not start unless you spray starting fluid into the air cleaner (be careful not to press the gas pedal while cranking, it may cause a backfire and catch the intake duct on fire), it should start and run ok, and even restart while the engine
    is still hot, but if you wait a while like a few hours or so it won't start again, the most likely cause for this problem is the fuel pump, install a good brand, not a cheap one or you will
    end up doing it again within a few months or a year or two.

  • brandon779 Nov 17, 2010

    I have had the same problem with my 97 Tahoe.... over and over actually. The last time I dropped the tank the pump had basically just fallen apart. Im having problems again. I still have a warranty on this pump and it will be replaced. The issue is I can't have another 3 month fuel pump. Can anyone recommend a good brand? Id rather pay the money and not worry about it. I have replaced... plugs, wires, cap, rotor, filter, lines, cam sensor, crank sensor, map sensor, maf sensor and battery.. not to mention the fuel pump twice. Is there anything I missed? One thing I noticed last time was at first if I threw jumper cables on it started right up. I had the battery, alternator, and starter checked this weekend and all checked out.

  • millerm2004 Nov 21, 2010

    For brandon, have you gotten any further on your tahoe? Changed fuel pump, etc? I have a 99 and we have replaced 4 fuel pumps almost every 3mos but they were after market. Just looking for helpful imput for mine!

  • brandon779 Nov 22, 2010

    No sir. Within 2 days of getting fuel at the gas station by my moms my tahoe went from running better than it has since '04 to barely running. Id crank it 4 or 5 times before id get fed up and get out the starting fluid. Someone suggested dry gas. It did nothing. While I was out getting everything tested I bought stp gas treatment in the gray bottle. When I pulled in I had a multiple cylinder misfire, and both my down stream oxygen sensors failing according to the engine code scan tool. I was skeptical when I put the first bottle in. 3 days later no engine light. I filled up at the normal place with high octane added the second bottle. Starts right up.

    Now, im not sure it will last but so far so good. Anyway my friends dad has a fleet of work trucks and he told me that he installed 10 in 1 vehicle before he got one that put out the 63 psi. He broke down and went to napa and ordered the OEM fuel pump. I tried recently but was told I had to order it from the dealership. 4 fuel pumps later im sure you don't remember but when you changed the original but on mine the original had a cap with a screen on the center valve. I believe the 99 has a line that connects to the center valve on the fuel pump though. The aftermarket pumps do not have the cap. When I'd fill the tank it would overflow and I'd lose a gallon or 2. I capped it and it seemed to start better right away.

    Some other things that have been suggested are clogged catylitic converter. Which was my original problem when I bought the vehicle. It started fine but when I gave it some gas it would stall. Ignition coil is what I think I was told. I read somewhere when you check your spark it should reach about 3 inches and be blue if its its about an inch or yellow its a poor spark.

    The thing that amazed me.. I mentioned that my second pump was in pieces when I removed it. I was sure it wasn't the problem. I heard the pump run everytime I turned the key. I couldn't think of anything else to try. Dropped the tank I popped off the or ring and tried to pull out the fuel pump. To my amazement the actual pump was lying in the bottom of the tank.

    Hopefully some of my rambling helped out.

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My 99 Hyundai Elantra will be running fine and die out of nowhere. What could cause the problem?


Fuel pump , fuel filter plugged , fuel pump relay etc.... maybe ! Have a fuel pressure test done . start there !

Dec 30, 2015 | Hyundai Motor 1999 Elantra

1 Answer

Wont start


The injectors can't be spraying good or it would start. What is the fuel pressure reading?

Jun 14, 2013 | Cars & Trucks

1 Answer

2004 Chevy Van 2500 turns over but wont start


Try spraying starting fluid into the intake. Remove the air filter to do this. If it starts for a few seconds then you have a fuel delivery problem. If it does not, then you have an electrical problem with the ignition. there are 3 things needed for an engine to run if it turns over. Air, Gas, Spark (fire). No air filter solved the easy air issue. Add starting fluid answers the fuel issue. Only leaves spark after that.

Aug 03, 2012 | Chevrolet Cars & Trucks

3 Answers

99 yukon 180,000 mi. doesn't start. cranks forever, but won't start. Should I be able to hear the fuel pump when I turn on the key?


yes you should be able to hear the fuel pump run for about 5 seconds once the key is turned to the on pos. check to make sure you have spark. if you do try having someone spray air intake or carb cleaner into intake manifold while you crank. If the truck starts right up for a second (or stays running as you keep spraying) Id say you have a bad fuel pump and id change the sending unit also. (First check the fuel pump fuse and fuel pump relay) GMC and Chevy are nororiously known for having bad fuel pump/sending unit problems. I have prob changed over 60 myself.

Nov 30, 2009 | 1999 GMC Yukon

1 Answer

1999 chevy tahoe 5.7 wont start in the am without starting fluid but as long as you start it every 1/2 hr or so it starts fine. runs good once started any suggestions?


check fuel pressure. If its marginal then replace the pump. These trucks are touchy on fuel pressure. Just a couple psi low and they do exactly this. In the morning cold is when you need max fuel. Be sure to replace the harness also as these tend to lead to repeated pump failures when faulty, which is pretty common

Nov 18, 2009 | 1999 Chevrolet Tahoe

2 Answers

My 1997 chevy tahoe will not start without starting fluid. I hear the fuel pump running and have changed the fuel pressure regulator already and the fuel filter. The pump is only a year old. Have checked...


IVE HAD PLENTY OF THESE GO OUT EVEN A MONTH LATER. AS FAR AS THE STARTING FLUID JUST TRY AND CYCLE KEY BUT KEEP IT FROM TURNING STATER OVER. TURN ON AND OFF ABOUT 3 TO 5 TIMES IT SHOULD BUILD ENOUGH PRESSURE TO START. TO START MINIMUN PRESS IS 55PSI.

Oct 30, 2009 | 1997 Chevrolet Tahoe

2 Answers

1999 chevy tahoe starting problem


i have a 99 5.7 chevy suburban and have to use starting fluid for it to turn on , ive replaced the fuel reg. and fuel pump is 4years old fuel filter 6months old new cam and crank sensor new distrbutor rotor and cap

Jul 30, 2009 | 1998 Chevrolet Tahoe

3 Answers

I have a 2001 chevy tahoe wont start


could be as simple as a dirty fuel filter. or maybe the fuel pump has died..i will go with the fuel filter since you were able to get it started again.. also when replacing your fuel filter you should go ahead and get new plugs and wires.. a small tune up wouldnt hurt and would only set you back 100.00 dollers maybe.. hope this helps

May 12, 2009 | 2001 Chevrolet Tahoe

Not finding what you are looking for?
1999 Chevrolet Tahoe Logo

2,434 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8270 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...