You are here: Forums SUVs Chevrolet Suburban & Tahoe Chevy Suburban

Chevy Suburban

944 messages,  Last post on Nov 20, 2009 at 6:44 PM

You are in the Chevrolet Suburban & Tahoe Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet Suburban, GMC Suburban, SUV

Messages Page 95 of 95 1 ... 89 90 91 92 93 94 95 Prev Next Last

Go To Msg # Search This Discussion

#938 of 944 1998 SUBURBAN 4X4 RUNNING ROUGH by bhaight Nov 02, 2009 (9:01 pm)
I had a macanic come over to house and do some work on jimmy. He put in a rear u joint, and a tuneup. Before tune up jimmy ran great but after the tuneup emediatley ran rough really rough, I thought maybe he broke a wire when changeing plugs, so put new plug wires on sure that would solve problem, NOPE! guy came back put little handheld computer on it and gave error code for o2 and missfire on a cylinder and catylitic converter code of some sort, wich i believe are not this problem because regardless of those issue it was running STRONG!. He changed cap and rotor that first day, could he have advanced the timeing some how? It smells like its running rich liked it choked. This rig ran GREAT before tuneup so im not buying an o2 sensor and cat went out a micro second after a tuneup. from the little i know it acts like a timming issue? Replies to this message: kiawah (Nov 03, 2009 4:44 am)
#939 of 944 Re: 1998 SUBURBAN 4X4 RUNNING ROUGH [bhaight] by kiawah Nov 03, 2009 (4:44 am)
Replying to: bhaight (Nov 02, 2009 9:01 pm) Could be.....If you had plugs that weren't firing, they wouldn't be burning the fuel, it would be dumping unburnt/misburnt fuel into the exhaust system, giving out of range o2 readings, and causing the exhaust to smell like it was very rich.   Pull all of the plugs, check to see what each one looks like. Check your wiring sequence, to make sure you didn't get wires crossed to the plugs.
#940 of 944 AC Heater Controls by sbrkovich Nov 10, 2009 (7:28 pm)
I am in the process of restoring a 96 Chevy Suburban. While replacing the stereo and changing out the antenna my heating control unit stopped working correctly. The fan control works but when I select heater, vents etc. it only blows out of the front defroster. It was working fine until the last time I took the stereo out and replaced the antenna lead and right after that this issue began. Also the positions of vent, heater, mix etc. don't click at each spot - but I'm not sure if they did previous to this. Someone suggested I replace the whole control unit but is it possible I blew a fuse or disconnected a wire or something more simple. It just seems to coincidental that the control was working fine previous to the last time I pulled out the stereo and now it doesn't work. http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/- emotorcons/emo_tongue.gif   Any thoughts and/or suggestions will be greatly appreciated. Replies to this message: cdhpc2 (Nov 11, 2009 4:38 pm)
#941 of 944 Re: AC Heater Controls [sbrkovich] by cdhpc2 Nov 11, 2009 (4:38 pm)
Replying to: sbrkovich (Nov 10, 2009 7:28 pm) I hate to tell you this, but pull the radio and see if you accidently pulled a wire loose on the Diverter door servo. That went out on ours and we were unable to get any front heat. Rear heat worked fine.   CH
#942 of 944 Re: 1994 2nd row seat latch! [cheesehead2] by paulied Nov 18, 2009 (3:08 pm)
Replying to: cheesehead2 (Jan 10, 2008 5:59 pm) Hey Cheeshead, I was wondering how you made out? I am looking for the same part and can not find it anywhere. Can you point me in the right direction? Thanks
#943 of 944 98 5.7 Suburban 4x4 Cranks great but won't start by rpmcommander Nov 19, 2009 (9:14 pm)
165,000 miles, I put new plugs, wires, cap and rotor and CPS for oil leak (as part of tune-up) Then 2 days later, no spark from coil. luckily in my driveway. Both the Ignition module and coil get pwr to pink wire, but after replacing them anyway (after 165k miles) it still doesn't start. Cranks good and fast, just won't fire or start. While looking for the pulse from the Ignition module to coil (test light clip to + and probe the ports), I found that the pink wire goes open during the crank process and no pulse . checked the pink wire to the ICM and sure enough, it goes open too. Replaced the ECM/PCM and reprogrammed security system but did not solve the problem. , I'm really perplexed but now suspect the key switch sensor in the column and will recheck the engine ground connections when it stops raining before changing the key electronics. Anyone have ANY ideas or know of anything else it might be?? Or am I on the right track? Replies to this message: rpmcommander (Nov 20, 2009 6:44 pm)
#944 of 944 Re: 98 5.7 Suburban 4x4 Cranks great but won't start [rpmcommander] by rpmcommander Nov 20, 2009 (6:44 pm)
Replying to: rpmcommander (Nov 19, 2009 9:14 pm) UPDATE As you probably figured, the cleaning of the ground terminals did not help the situation. I cleaned the engine-to-frame grounds near the starter, cleaned the battery cable-to block ground near the harmonic balancer, and the ECM/PCM ground at the thermostat housing. I rechecked all the fuses for the 6th time -- All ok, also jump-charged the "newer" battery for an hour---- Engine still spins very fast on crank but fails to show any signs of trying to fire. Guess I'll drop another $100 on the passkey electronics tomorrow.

Messages Page 95 of 95 1 ... 89 90 91 92 93 94 95 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums SUVs Chevrolet Suburban & Tahoe Chevy Suburban