check fuel pressure.

check for back pressure from cat converters.

Roy

Answered by ASEMaster6371 (expert)
24,854 answers provided

Done did cats r fine and fuel pressure is good

Response from HollySA12
1 question asked

ok, what is the pressure on the fuel and the back pressure on the cats??

Roy

Answered by ASEMaster6371 (expert)
24,854 answers provided

I am not sure my dad did it and he is a mechanic.... But this problem has stunned us we have checked and changed everything....lol....at a lost really i wanna say fuel pressure was 35

Response from HollySA12
1 question asked

Did the car run hot?

Answered by mikederouin88
17 questions asked

There could be a build up of debris in the fuel tank when the fuel pump is drawing fuel it will catch the debris and cause low pressure put a fuel pressure gauge on it and check pressure as you are driving it

Answered by tachains
0 questions asked

We done the fuel pressure at autozone and they said it was fine for that truck. Fuel tank was cleaned bout 4 days ago we put a new fuel pump in it

Response from HollySA12
1 question asked

No truck is not running hot

Response from HollySA12
1 question asked

got the EXACT same problem on a truck im working on, getting codes P0174 , P1131 , and P0135 , not running hot, fuel press around 35-40 while driving down the road, when it stalls out to nothing, its still idling but wont accelerate, the fuel pressure DOES NOT change at all as this is happening, then after a few seconds.. vrroom right back to running perfect..what the hecks going on??

Answered by miltondacusjr
0 questions asked