M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: bosshogg85 on July 30, 2009, 10:17:56 PM

Title: Sloww 318is
Post by: bosshogg85 on July 30, 2009, 10:17:56 PM

Whats up guys? I have a big problem, I drive a 94 318is it looks good but my car accelerates very slow, I have to put it in 3 to accelerate and it still does not feel normal. I get in 3rd gear but I can not go faster than 45 mph. The transmission is automatic and im not sure where to pin point problem. PLEASE HELP ME OUT:confused:

Title: Sloww 318is
Post by: Danny707 on July 30, 2009, 11:52:17 PM

Its a 318.

Title: Sloww 318is
Post by: HATER-PROOF on July 31, 2009, 12:26:22 AM

(1)-what grade of fuel are you using?
(2)-do you use additives in the tank?
(3)-has she been sitting in one spot over a long period(months)?
(4)-when was the last time you had her tuned?

Title: Sloww 318is
Post by: Jorgeconrico on July 31, 2009, 06:43:21 AM

Quote from: Danny707;76115

Its a 318.

    ^^^^and an automatic. Fuel filter, plugs.....vac leak

Title: Sloww 318is
Post by: iamcreepingdeath on August 01, 2009, 03:00:06 PM

you have to be more specific as to what is actually happening.

Title: Sloww 318is
Post by: bosshogg85 on August 01, 2009, 03:52:31 PM

so friday morn when I went to school the car ran like it supposed to,  I just bought the car a month ago I think its been sitting for a good while though. It sounded good when the car didnt accelerate good but friday morn when it sounded a lil like crap it accelerated way better. I have a rattle sound seems like inside the cat and the engine sorta sounds like a diesel. Im thinkin it may be some kinda sensor.

Title: Sloww 318is
Post by: bosshogg85 on August 01, 2009, 04:00:48 PM

I use 89 gas and havnt put any addatives in since i first got it

Title: Sloww 318is
Post by: Jorgeconrico on August 01, 2009, 05:26:37 PM

Bad timing chains sound like diesels.

Title: Sloww 318is
Post by: xwill112x on August 02, 2009, 12:04:40 PM

try finding and fixing your vaccum leaks, throw on a new 02 sensor, then see how it runs?

Title: Sloww 318is
Post by: bosshogg85 on August 02, 2009, 04:09:18 PM

ok thanks for the advise

Title: Sloww 318is
Post by: xwill112x on August 03, 2009, 10:51:57 AM

yea, get back to us if it doesn't run very well, still.

Title: Sloww 318is
Post by: bosshogg85 on August 04, 2009, 07:14:48 PM

checked for vac leaks and put a new mustang o2 sensor and still has slow acceleration and I have noticed that something in the cat is loose and rattles bad. So now im thinking it could be camshaft position sensor or crankshaft position sensor!!

Title: Sloww 318is
Post by: bosshogg85 on August 09, 2009, 12:31:21 PM

well I have noticed that the car only runs good when i have a quarter of a tank of gas. fuel filter or pump maybe?

Title: Sloww 318is
Post by: carl6405 on August 12, 2009, 05:37:36 AM

Your catalytic converter is probably clogged up and needs replacing. I had to replace mine, it was full of carbon build up. Cant get proper air flow through the exaust will cause this.  The vacuum linese are cheap and can be bought by the foot at any auto store. Also, most are easy to get to. These hoses dry rot and crack.

Title: Sloww 318is
Post by: bosshogg85 on August 16, 2009, 11:49:48 AM

yep took my cat off last night and the insides were crushed in big chunks, hooked everything back up this morn its doing good!

Title: Sloww 318is
Post by: 3bvert on August 24, 2009, 10:00:14 AM

dont just replace vac lines, look into the throttle body heater delete and get rid of most of the leaky vac hoses
use search

Title: Sloww 318is
Post by: JoeDellio on August 26, 2009, 03:49:11 AM

Quote from: Danny707;76115

Its a 318.

Quote from: Jorgeconrico;76133

^^^^and an automatic. Fuel filter, plugs.....vac leak

+1