No acceleration at beginning of drive

[benualson]

When I start driving either when the car is cold or warm, the truck hardly responds to the throttle. I can put it to the floor and no acceleration occurs. After several seconds, the truck starts to respond and runs fine. I took it to the Chevy dealer and they said it was due to a gummed up throttle body. They charged $170 to clean it. I drove it home. A few hours later, I took the truck on a drive and experienced the same problem! Any idea what it may be? I am thinking it may be not getting fuel but am not sure. Bummed the dealer charged me to clean TB when that didn't solve the problem. However, the truck is idling smoother as a result. So, it probably needed it.

 

[magimerlin]

Is your check engine light on?

sent from what use to be a great nation...

 

[benualson]

Is your check engine light on?

sent from what use to be a great nation...

No it is not.

 

[magimerlin]

Assuming this is for the 98 in your profile.... correct? When was the last tune up done? Last fuel filter?

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[benualson]

Yes 98. Within the past 10,000 miles/ 1.5 yrs: Complete front end rebuild (joints, axles, arms, bearings, etc). New valve cover gaskets, intake manifold gaskets, rotor/cap, plugs, wires, rear diff rebuild, fuel filter.

 

[grampadirt]

Have you checked the fuel pressure?

 

[benualson]

No. Thought the dealer may have. I'll have them check it.

 

[east302]

Checking for bad/clogged catalytic converters might be a good idea as well.

 

[benualson]

Dealer cleaned throttle body & then tried replacing fuel filter to no avail. They said a new fuel pump may fix the issue; but not guaranteed. They said it is a fuel volume problem; not fuel pressure. They said it would be about $800 -$900 to do the fuel pump. I am thinking about doing it myself via cutting an access panel:

http://www.gmt400.com/forum/showthread.php?11423-Fuel-pump-access-panel

I ordered this fuel pump (w/ sender):

http://www.amazon.com/gp/product/B0027Z1KE6/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

Ordered this fuel line disconnect tool:

http://www.amazon.com/gp/product/B004BWBAD4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I have an angle grinder; however, some have suggested a mini reciprocating saw. So, I may order this:

http://www.amazon.com/gp/product/B00004XOT3/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

Anything other parts I need besides that fuel pump/sender unit?

Any tips?

Thanks.

 

[magimerlin]

If you have a few friends handy...beer and pizza works great to motivate......lol. the bed comes off real easy with as little as two strong guys.. 3 to 4 weaker ones...lol.

That's how I do it at work. Fast and easy.. just bring it back far enough to access the tank and set the bed back down on the tire and rear bumper... no hole needed....

sent from what use to be a great nation...