no passing gear please help

[mm0142]

First the fuel pump went out over the weekend . I had it towed home this morning and dropped the tank put in the new pump . When I started it up it idled rough a few min and smoked then went to normal. I took it down the road and when I hit the gas in any gear it just revs up and stalls but still runs . If I dont push the gas very hard at all it will go through all the gears . Any help is appreciated. oh yea its a 96 tahoe 2wd 5.7 auto

not to mention the 4 flat tires and both side mirrors busted with 2 huge ass dents in both passenger doors fronm my ****** ass little brother

---------- Post added at 05:46 PM ---------- Previous post was at 04:34 PM ----------

ive seen where a clogged cat can cause this . it never had this issue before now just after the pump change . is there anyway to check the cat first ??

 

[haks310]

not to mention the 4 flat tires and both side mirrors busted with 2 huge ass dents in both passenger doors fronm my ****** ass little brother

Damn, must of been a fun night


Hmm don't know. You install a new fuel filter, something might have clogged the old one.

 

[mm0142]

yea a new filter about a month ago . i just dont want to have to rebuilt the trans . really dont want too . Im hoping like hell its the cat and it can wait a few days to get fixed im broke now after this weekend

 

[haks310]

Hope its the cats, have you got any codes?

 

[mm0142]

no nothing at all . I wish i knew a way to check the cat i cant afford to take it to a shop for a few weeks now . i wouldsaw the exhaust off and see if it solves the problem then i would know but if it wasnt then i would just have to take it and get it welded back on . lol

---------- Post added at 06:50 PM ---------- Previous post was at 06:45 PM ----------

was told to try this to see if its the cats will do in the morning
Does the transmission slip or engine RPM flare up.

Or does the engine just bog down.

Quick easy fast test.

To check for restricted cat check vacuum at idle and at 2K RPM.

If vacuum dropes when engine speed up you have a restricted exhaust system.

A exhaust shop or repair shop can also test back pressure for you.[/quote]

 

[haks310]

Yeah, a back pressure test would tell you if something is up with the cats. You should be getting a code though if it is that severe.