Chevrolet Astro misfire problems

Filed Nov 13, 2007 · Electrical, Fuel system · 171,000 miles · OH

Chevy 2000 astro, cuts out while driving. We even pushed the van into a chevy dealer and they could not tell us what it was after hooking it up to diagnostics. We figured it was the coil wire. Recently the van has been bogging down when it is under load. Also, when it rains it runs rough. We took it to a shop and they replaced our fuel filter. It ran fine but still cuts out sometimes running up hill. So we changed the spark plugs. If you let the van sit over the weekend with out driving it, the van was really hard to start. Until finally it just wouldn't start at all. In addition the door locks sometimes work and sometimes don't . The driver side window is very sluggish going up you actually have to help it by pulling up on it. We keep blowing fuses when we use our cigarette lighter to charge our cell phone. It really needs help.

Filed Sep 21, 2007 · Electrical · 31,000 miles · LA

Vehicle has repeatedly starting running poorly and has a lack of power along with a misfire. Vehicle is then hard to accelerate and slows down flow of traffic. Each time the distributor cap and rotor have been found with excessive amount of corrosion on them and when the cap & rotor are replaced the problem goes away for a while. The cap & rotor were changed 3 times each before 50,000 miles.

Filed Apr 29, 2005 · Brakes, Engine · ME

After ball joint recall, I have had nothing but problems with steering, braking and suspension. Front left side continually pops and grinds, shock boot was replaced twice, the shocks have been replaced 3 times. The third time may have fixed it, just got the van back today. Brakes are intermittent. Heard loud bang from rear end, dealership tightened backing plate. Transmission slips, shudder is felt from rear end at 30+ MPH. Dealership put balances on torque converter and the drive shaft, had to cut the rear springs to do this. Service manager stated the problem was not gone, but livable. Vehicle runs rough at idle, almost stalling, service manager experienced the problem as well. Said fuel injector port was fill with carbon, but cleaning it did not fix the problem. Check engine light came on during a trip, stayed on for the 6 hour drive home, there was no heat at all, service manager said he could not get the computer to reproduce the code, but replaced the thermostat, water pump and two clamps.

Filed Mar 18, 2004 · Engine · 150,000 miles · VA

For all of you 1994 chevrolet astro owners and any others that have the older 4.3l vortec engine. I have the solution to your legr valve carbon cloging problem. My 1994 ext van has 150,000 miles and I had been getting the rough idle and stalling when at a stop light problem. It has done this before to me every 6months or so and I just pulled off my egr valve, knock out the carbon chunk that is stuck in it and 20 min later im on my way. Well it has come back bad and it is cloging every 20 miles with lots of carbon chunks. Chevy tells me that the lower intake needs to be emoved and bead blasted to remove the carbon build up. I did some research and there was a egr recall that they were supposed to take care of this cleaning if it happened the 1st 7 years or 75,000 miles of the van. Well they wont do it for me and the dealer wants $500-$1000 to do this. I fanaly found the solution to this problem that every chevy owner that has the 4.3l vortec eninge. This is called the klean screen. It is a replacement egr gasket that has a high temp screen at the egr input opening that will stop large chunks of carbon from entering the egr valve and when it gets warmed up the screen will break the chunks up into small peices that will pass the egr poppet. They cost about 13.50 each at auto zone and the company is named tomco inc. Www.tomco-inc.com. It has been 1 week since I have installed the gasket on the original egr valve that came with the van new 150,000 miles ago and it runs great so far. Th gm part number for this gasket is 2-1357. I bought mine at the local autozone by my house in virginia. You can also buy right from the company at 10.50 each with a 5 order min. Good luck everyone wayne jordan.

Filed Mar 16, 2004 · Engine, Fuel system · 113,000 miles · IL

When coming to a complete stop vehicle lurched forward about five feet. Also, vehicle stalled intermittently, and had a rough idle. Vehicle was taken to the dealer four times and mechanic replaced the lower intake gasket/ egr valve twice, and fuel injectors. None of these repairs resolved the problem.

Filed Feb 20, 2002 · Engine · OH

When driving engine runs rough and acts like it wants to cut off. Also, egr valve gets clogged with carbon on a regular basis. Dealer has replaced egr valve 3 times, and cleaned it 4 times.

Filed May 9, 2001 · Fuel system · PA

Vehicle runs rough due to fuel injection failure. When car is idlling gas is spilled through engine, and causes gas to go into oil, which could result in an engine fire.

Filed Nov 29, 1999 · Electrical, Fuel system · CA

The speed ometer works intermittenly and the windshield wipers also work intermittenly. Sometimes the car stalls, or will not start and when taken to a dealer they came nothing is wrong. It also will sometimes run rough and will have a service engine soon light come on. I did receive a letter from chevrolet regarding some of these problems, but I was told my car did not qualify for a recall repair because there was nothing wrong.

Filed Sep 21, 1999 · Fuel system · CA

Engine misfires and runs poorly setting off the "check engine soon" light. The first time we took it to the dealer I was told this is very common in astro vans and I should not use chevron gas. I thought this was strange advice because I never used than brand of gas. I had a record off all the brands of gas I used but the dealer was not interested and I was only told to switch brands. The second time I brought the van in for the same problem I was told to switch brands again. Now there are no brands left to try. Each time the dealer added a clearner to the gas tank and idled the car for 45 minutes to "clean" the sticking injectors. The van also gets very bad gas mileage. I wrote a letter to gm and I was told that it was a technical problem that the dealer must solve.

Filed Jun 5, 1999 · Fuel system · CA

Fuel injector failures have occurred on three different occasions beginning at 4,000 / 15,000 / 17,500. Miles. Total of 4 fuel injectors have been replaced. No warnng of pending failure. Van just fails to start or misfires. Dealer says that gm is studing the problem. Feels it is a west coast problem associated with gasoline.