diffecult problem

**feras** · 03-02-2007, 05:27 AM

hi every boddy

i need help

i have 99 camaro ls1 5.7 L

i have big broblem in my car , i don`t know how to solve the broblem .

the broblem is engine hesitation with cut off with black smoke

i take the car to many garage but no boddy find the cause of this problem

finally i take the car to the dellar and checked by tester he said to me the engine has Air leak but we don`t know from wher maybe from intake manifold gasket . but the Air flow sensor is OK als the coils and plugs .

after that i change the gasket of intake manifold , plugs , coils and wires but still i have same problem .

if ny boddy knows about this problem plz help me

I`m soory for my language because i can`t speak english very well but i hope u understnd me

thanks

**feras** · 03-02-2007, 08:26 AM

??

**2001NBMZ28** · 03-02-2007, 10:03 AM

Did the dealer write down what, if any code(s) when they scanned it on the paperwork?

**feras** · 03-02-2007, 11:32 AM

thank u my friend

when i took the car to the dellar i checked it on quick service section dosne`t the main garage of the dellar so i didn`t have report or descreption for code(s)

we checked the car by GM tester and he said to me that .. your car has cods ( i didn`t remmeber the nomber of that code ) but when i asked him about this code he said to me this code means your engine has Air leakage

also the fuel pump has some problem because we checked also and find low pressure in gage

fuel pump pressurr = 20 to 25 only

that`s what i know

thanks

**Mr. Luos** · 03-02-2007, 11:35 AM

Fuel pressure at the fuel line should be 58 or so at idle.

Sounds like you may run outta fuel if that pressure number is correct.

**feras** · 03-02-2007, 11:55 AM

do u think that if the fuel pump has defect it the causing this problem .?

do you think if the fuel pump has defect is it the causing this problem .?

because when I turn engine is working but the hesitation is strong and sometimes cut off , black smoke also petrol smell is strong also it makes sound like back fire sometimes.
when it is cold this problem is clear but
when I drive the car for long distance the problem is going

**2001NBMZ28** · 03-02-2007, 11:57 AM

Wish they gave you the code, would be so much easier to tell what is going on. Is there any place there that will read them free? If you get the car scanned just post the code number, don't worry about the description. That fuel pressure is too low for sure, first thing I'd try is replacing the fuel filter to see if it improves.

**Mr. Luos** · 03-02-2007, 12:01 PM

Clogged fuel filter??

**feras** · 03-02-2007, 12:08 PM

Originally Posted by 2001NBMZ28

Wish they gave you the code, would be so much easier to tell what is going on. Is there any place there that will read them free? If you get the car scanned just post the code number, don't worry about the description. That fuel pressure is too low for sure, first thing I'd try is replacing the fuel filter to see if it improves.

thank you my friend really this is what I am thinking about to do tomorrow

first I will change the fuel filter if the problem is still I will return my old intake manifold because I changed the stock before I put Zo6 intake manifold

and I will tell you tomorrow the result

**Mr. Luos** · 03-02-2007, 12:11 PM

If you take the intake off...check all 8 port seals. One could be cracked or something creating a vacuum leak.

**feras** · 03-02-2007, 12:21 PM

Originally Posted by Mr. Luos

If you take the intake off...check all 8 port seals. One could be cracked or something creating a vacuum leak.

thank you alot my friend for your advice

last week I changed all 8 port seals I bought from dellar also I changed plugs and coils

the strange thing is the technical said to me this first time he saw that problem because we replace every thing only the fuel filter and the problem is still and he give me fucking advice he said that you should change the all engine

**feras** · 03-03-2007, 01:26 AM

hello my friend
i went to dellar and checked the car by tester

there are no code(s) ..??

and all the sensor is ok

but there are some thing ... the cylinder No 1 and 5 and 7 has mess firing

after that . I replaced the fuel filter

but nothing change after that . I replaced the fuel filter

but nothing change still I have the same problem

**jimmy77611** · 03-03-2007, 03:14 AM

You need to re test fuel pressure since you changed the fuel filter. If it is still low, then your fuel pump is probably weak.

**feras** · 03-03-2007, 08:13 AM

Originally Posted by jimmy77611

You need to re test fuel pressure since you changed the fuel filter. If it is still low, then your fuel pump is probably weak.

this is my next step

i will change the fuel pump

**Mr. Luos** · 03-03-2007, 08:28 AM

Originally Posted by feras

but there are some thing ... the cylinder No 1 and 5 and 7 has mess firing

Driver side bank misfires.

Wonder if it has a bad O2? Or the MAF needs cleaned.

**feras** · 03-03-2007, 08:48 AM

Originally Posted by Mr. Luos

Driver side bank misfires.

Wonder if it has a bad O2? Or the MAF needs cleaned.

I clened the Air Flow sensor yesterday also I cleaned the throutell

but the car has bad O2 because the exhust smoke is black and the gas smell is strong

Now I am think about change fuel pump

but what is your opinion about the new i find Corvette Fuel pump i think it is petter than fuel pump of camaro is it true .?

**jimmy77611** · 03-04-2007, 04:06 AM

I still think that you need to re test fuel pressure before changing the pump.

**feras** · 03-04-2007, 06:36 AM

Originally Posted by jimmy77611

I still think that you need to re test fuel pressure before changing the pump.

thank u my friend

i will retest the fuel pressure before changing

**feras** · 03-05-2007, 05:03 AM

I am back

i checked again the intake manifold i put water around the drive side of intake and i found some thing there is a new air leak

so i bougth a new seal

now i`m working on car to change the seal of intake

i hope it is the cause of problem

if car doesn`t work well i will burn it

b r b